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Finding the Fourth Proportional to 121,337.20, 181,973.40 and 37,097.20

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Solution

The fourth proportional to 121,337.20, 181,973.40 and 37,097.20 is: 55,635.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,337.20 : 181,973.40 = 37,097.20 : x
  2. Step 2: Convert to fraction form
    121,337.20/181,973.40 = 37,097.20/x
  3. Step 3: Cross multiply
    121,337.20x = 181,973.40 × 37,097.20
  4. Step 4: Simplify right side
    121,337.20x = 6,750,703,614.48
  5. Step 5: Solve for x
    x = 6,750,703,614.48/121,337.20
  6. Step 6: Final answer
    x = 55,635.89

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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.