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Finding the Fourth Proportional to 116,587.76, 174,627.70 and 71,472.58

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Solution

The fourth proportional to 116,587.76, 174,627.70 and 71,472.58 is: 107,053.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,587.76 : 174,627.70 = 71,472.58 : x
  2. Step 2: Convert to fraction form
    116,587.76/174,627.70 = 71,472.58/x
  3. Step 3: Cross multiply
    116,587.76x = 174,627.70 × 71,472.58
  4. Step 4: Simplify right side
    116,587.76x = 12,481,091,643.22
  5. Step 5: Solve for x
    x = 12,481,091,643.22/116,587.76
  6. Step 6: Final answer
    x = 107,053.19

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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.