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Finding the Fourth Proportional to 157,158.83, 216,872.77 and 89,174.39

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Solution

The fourth proportional to 157,158.83, 216,872.77 and 89,174.39 is: 123,057.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,158.83 : 216,872.77 = 89,174.39 : x
  2. Step 2: Convert to fraction form
    157,158.83/216,872.77 = 89,174.39/x
  3. Step 3: Cross multiply
    157,158.83x = 216,872.77 × 89,174.39
  4. Step 4: Simplify right side
    157,158.83x = 19,339,497,411.32
  5. Step 5: Solve for x
    x = 19,339,497,411.32/157,158.83
  6. Step 6: Final answer
    x = 123,057.02

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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.