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Finding the Fourth Proportional to 154,611.90, 216,767.70 and 154,611.90

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Solution

The fourth proportional to 154,611.90, 216,767.70 and 154,611.90 is: 216,767.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,611.90 : 216,767.70 = 154,611.90 : x
  2. Step 2: Convert to fraction form
    154,611.90/216,767.70 = 154,611.90/x
  3. Step 3: Cross multiply
    154,611.90x = 216,767.70 × 154,611.90
  4. Step 4: Simplify right side
    154,611.90x = 33,514,865,955.63
  5. Step 5: Solve for x
    x = 33,514,865,955.63/154,611.90
  6. Step 6: Final answer
    x = 216,767.70

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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.