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Finding the Fourth Proportional to 178,061.10, 245,730.52 and 97,489.28

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Solution

The fourth proportional to 178,061.10, 245,730.52 and 97,489.28 is: 134,538.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,061.10 : 245,730.52 = 97,489.28 : x
  2. Step 2: Convert to fraction form
    178,061.10/245,730.52 = 97,489.28/x
  3. Step 3: Cross multiply
    178,061.10x = 245,730.52 × 97,489.28
  4. Step 4: Simplify right side
    178,061.10x = 23,956,092,687.67
  5. Step 5: Solve for x
    x = 23,956,092,687.67/178,061.10
  6. Step 6: Final answer
    x = 134,538.61

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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.