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Finding the Fourth Proportional to 150,758,467.40, 211,539,611.80 and 150,758,467.40

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Solution

The fourth proportional to 150,758,467.40, 211,539,611.80 and 150,758,467.40 is: 211,539,611.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,758,467.40 : 211,539,611.80 = 150,758,467.40 : x
  2. Step 2: Convert to fraction form
    150,758,467.40/211,539,611.80 = 150,758,467.40/x
  3. Step 3: Cross multiply
    150,758,467.40x = 211,539,611.80 × 150,758,467.40
  4. Step 4: Simplify right side
    150,758,467.40x = 31,891,387,669,358,960
  5. Step 5: Solve for x
    x = 31,891,387,669,358,960/150,758,467.40
  6. Step 6: Final answer
    x = 211,539,611.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.