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Finding the Fourth Proportional to 157,591.90, 217,467.66 and 89,599.06

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Solution

The fourth proportional to 157,591.90, 217,467.66 and 89,599.06 is: 123,641.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,591.90 : 217,467.66 = 89,599.06 : x
  2. Step 2: Convert to fraction form
    157,591.90/217,467.66 = 89,599.06/x
  3. Step 3: Cross multiply
    157,591.90x = 217,467.66 × 89,599.06
  4. Step 4: Simplify right side
    157,591.90x = 19,484,897,916.40
  5. Step 5: Solve for x
    x = 19,484,897,916.40/157,591.90
  6. Step 6: Final answer
    x = 123,641.49

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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.