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Finding the Fourth Proportional to 121,308.72, 181,963.08 and 37,065.48

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Solution

The fourth proportional to 121,308.72, 181,963.08 and 37,065.48 is: 55,598.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,308.72 : 181,963.08 = 37,065.48 : x
  2. Step 2: Convert to fraction form
    121,308.72/181,963.08 = 37,065.48/x
  3. Step 3: Cross multiply
    121,308.72x = 181,963.08 × 37,065.48
  4. Step 4: Simplify right side
    121,308.72x = 6,744,548,902.48
  5. Step 5: Solve for x
    x = 6,744,548,902.48/121,308.72
  6. Step 6: Final answer
    x = 55,598.22

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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.