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Finding the Fourth Proportional to 152,467.50, 210,405.15 and 92,851.50

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Solution

The fourth proportional to 152,467.50, 210,405.15 and 92,851.50 is: 128,135.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,467.50 : 210,405.15 = 92,851.50 : x
  2. Step 2: Convert to fraction form
    152,467.50/210,405.15 = 92,851.50/x
  3. Step 3: Cross multiply
    152,467.50x = 210,405.15 × 92,851.50
  4. Step 4: Simplify right side
    152,467.50x = 19,536,433,785.23
  5. Step 5: Solve for x
    x = 19,536,433,785.23/152,467.50
  6. Step 6: Final answer
    x = 128,135.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.