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Finding the Fourth Proportional to 127,881.29, 176,472.12 and 70,523.03

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Solution

The fourth proportional to 127,881.29, 176,472.12 and 70,523.03 is: 97,319.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,881.29 : 176,472.12 = 70,523.03 : x
  2. Step 2: Convert to fraction form
    127,881.29/176,472.12 = 70,523.03/x
  3. Step 3: Cross multiply
    127,881.29x = 176,472.12 × 70,523.03
  4. Step 4: Simplify right side
    127,881.29x = 12,445,347,730.56
  5. Step 5: Solve for x
    x = 12,445,347,730.56/127,881.29
  6. Step 6: Final answer
    x = 97,319.54

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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.