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Finding the Fourth Proportional to 176,663.53, 243,691.88 and 111,148.19

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Solution

The fourth proportional to 176,663.53, 243,691.88 and 111,148.19 is: 153,319.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,663.53 : 243,691.88 = 111,148.19 : x
  2. Step 2: Convert to fraction form
    176,663.53/243,691.88 = 111,148.19/x
  3. Step 3: Cross multiply
    176,663.53x = 243,691.88 × 111,148.19
  4. Step 4: Simplify right side
    176,663.53x = 27,085,911,379.70
  5. Step 5: Solve for x
    x = 27,085,911,379.70/176,663.53
  6. Step 6: Final answer
    x = 153,319.21

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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.