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Finding the Fourth Proportional to 123,415.88, 185,124.42 and 29,921.63

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Solution

The fourth proportional to 123,415.88, 185,124.42 and 29,921.63 is: 44,882.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,415.88 : 185,124.42 = 29,921.63 : x
  2. Step 2: Convert to fraction form
    123,415.88/185,124.42 = 29,921.63/x
  3. Step 3: Cross multiply
    123,415.88x = 185,124.42 × 29,921.63
  4. Step 4: Simplify right side
    123,415.88x = 5,539,223,473.58
  5. Step 5: Solve for x
    x = 5,539,223,473.58/123,415.88
  6. Step 6: Final answer
    x = 44,882.58

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1.5x scale

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.