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Finding the Fourth Proportional to 123,805.52, 185,637.04 and 66,031.48

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Solution

The fourth proportional to 123,805.52, 185,637.04 and 66,031.48 is: 99,009.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,805.52 : 185,637.04 = 66,031.48 : x
  2. Step 2: Convert to fraction form
    123,805.52/185,637.04 = 66,031.48/x
  3. Step 3: Cross multiply
    123,805.52x = 185,637.04 × 66,031.48
  4. Step 4: Simplify right side
    123,805.52x = 12,257,888,494.02
  5. Step 5: Solve for x
    x = 12,257,888,494.02/123,805.52
  6. Step 6: Final answer
    x = 99,009.22

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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.