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Finding the Fourth Proportional to 123,678.59, 185,480.75 and 52,600.63

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Solution

The fourth proportional to 123,678.59, 185,480.75 and 52,600.63 is: 78,885.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,678.59 : 185,480.75 = 52,600.63 : x
  2. Step 2: Convert to fraction form
    123,678.59/185,480.75 = 52,600.63/x
  3. Step 3: Cross multiply
    123,678.59x = 185,480.75 × 52,600.63
  4. Step 4: Simplify right side
    123,678.59x = 9,756,404,302.87
  5. Step 5: Solve for x
    x = 9,756,404,302.87/123,678.59
  6. Step 6: Final answer
    x = 78,885.15

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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.