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Finding the Fourth Proportional to 123,073.08, 169,756.54 and 75,350.01

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Solution

The fourth proportional to 123,073.08, 169,756.54 and 75,350.01 is: 103,931.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,073.08 : 169,756.54 = 75,350.01 : x
  2. Step 2: Convert to fraction form
    123,073.08/169,756.54 = 75,350.01/x
  3. Step 3: Cross multiply
    123,073.08x = 169,756.54 × 75,350.01
  4. Step 4: Simplify right side
    123,073.08x = 12,791,156,986.57
  5. Step 5: Solve for x
    x = 12,791,156,986.57/123,073.08
  6. Step 6: Final answer
    x = 103,931.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.