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Finding the Fourth Proportional to 177,239.54, 265,691.04 and 70,688.90

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Solution

The fourth proportional to 177,239.54, 265,691.04 and 70,688.90 is: 105,966.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,239.54 : 265,691.04 = 70,688.90 : x
  2. Step 2: Convert to fraction form
    177,239.54/265,691.04 = 70,688.90/x
  3. Step 3: Cross multiply
    177,239.54x = 265,691.04 × 70,688.90
  4. Step 4: Simplify right side
    177,239.54x = 18,781,407,357.46
  5. Step 5: Solve for x
    x = 18,781,407,357.46/177,239.54
  6. Step 6: Final answer
    x = 105,966.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.