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Finding the Fourth Proportional to 172,952.96, 238,657.60 and 127,655.68

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Solution

The fourth proportional to 172,952.96, 238,657.60 and 127,655.68 is: 176,151.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,952.96 : 238,657.60 = 127,655.68 : x
  2. Step 2: Convert to fraction form
    172,952.96/238,657.60 = 127,655.68/x
  3. Step 3: Cross multiply
    172,952.96x = 238,657.60 × 127,655.68
  4. Step 4: Simplify right side
    172,952.96x = 30,465,998,215.17
  5. Step 5: Solve for x
    x = 30,465,998,215.17/172,952.96
  6. Step 6: Final answer
    x = 176,151.93

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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.