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Finding the Fourth Proportional to 124,154.96, 186,200.76 and 39,897.68

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Solution

The fourth proportional to 124,154.96, 186,200.76 and 39,897.68 is: 59,836.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,154.96 : 186,200.76 = 39,897.68 : x
  2. Step 2: Convert to fraction form
    124,154.96/186,200.76 = 39,897.68/x
  3. Step 3: Cross multiply
    124,154.96x = 186,200.76 × 39,897.68
  4. Step 4: Simplify right side
    124,154.96x = 7,428,978,338.24
  5. Step 5: Solve for x
    x = 7,428,978,338.24/124,154.96
  6. Step 6: Final answer
    x = 59,836.34

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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.