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Finding the Fourth Proportional to 116,615.58, 174,711.17 and 81,001.65

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Solution

The fourth proportional to 116,615.58, 174,711.17 and 81,001.65 is: 121,355.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,615.58 : 174,711.17 = 81,001.65 : x
  2. Step 2: Convert to fraction form
    116,615.58/174,711.17 = 81,001.65/x
  3. Step 3: Cross multiply
    116,615.58x = 174,711.17 × 81,001.65
  4. Step 4: Simplify right side
    116,615.58x = 14,151,892,638.42
  5. Step 5: Solve for x
    x = 14,151,892,638.42/116,615.58
  6. Step 6: Final answer
    x = 121,355.08

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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.