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Finding the Fourth Proportional to 123,722.55, 185,565.60 and 34,985.03

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Solution

The fourth proportional to 123,722.55, 185,565.60 and 34,985.03 is: 52,472.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,722.55 : 185,565.60 = 34,985.03 : x
  2. Step 2: Convert to fraction form
    123,722.55/185,565.60 = 34,985.03/x
  3. Step 3: Cross multiply
    123,722.55x = 185,565.60 × 34,985.03
  4. Step 4: Simplify right side
    123,722.55x = 6,492,017,155.14
  5. Step 5: Solve for x
    x = 6,492,017,155.14/123,722.55
  6. Step 6: Final answer
    x = 52,472.38

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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.