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Finding the Fourth Proportional to 157,022.62, 216,730.92 and 89,080.10

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Solution

The fourth proportional to 157,022.62, 216,730.92 and 89,080.10 is: 122,953.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,022.62 : 216,730.92 = 89,080.10 : x
  2. Step 2: Convert to fraction form
    157,022.62/216,730.92 = 89,080.10/x
  3. Step 3: Cross multiply
    157,022.62x = 216,730.92 × 89,080.10
  4. Step 4: Simplify right side
    157,022.62x = 19,306,412,026.69
  5. Step 5: Solve for x
    x = 19,306,412,026.69/157,022.62
  6. Step 6: Final answer
    x = 122,953.06

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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.