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Finding the Fourth Proportional to 117,897.48, 176,873.90 and 39,011.72

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Solution

The fourth proportional to 117,897.48, 176,873.90 and 39,011.72 is: 58,526.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,897.48 : 176,873.90 = 39,011.72 : x
  2. Step 2: Convert to fraction form
    117,897.48/176,873.90 = 39,011.72/x
  3. Step 3: Cross multiply
    117,897.48x = 176,873.90 × 39,011.72
  4. Step 4: Simplify right side
    117,897.48x = 6,900,153,982.68
  5. Step 5: Solve for x
    x = 6,900,153,982.68/117,897.48
  6. Step 6: Final answer
    x = 58,526.73

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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.