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Finding the Fourth Proportional to 60,460.78, 90,700.56 and 30,862.60

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Solution

The fourth proportional to 60,460.78, 90,700.56 and 30,862.60 is: 46,298.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,460.78 : 90,700.56 = 30,862.60 : x
  2. Step 2: Convert to fraction form
    60,460.78/90,700.56 = 30,862.60/x
  3. Step 3: Cross multiply
    60,460.78x = 90,700.56 × 30,862.60
  4. Step 4: Simplify right side
    60,460.78x = 2,799,255,103.06
  5. Step 5: Solve for x
    x = 2,799,255,103.06/60,460.78
  6. Step 6: Final answer
    x = 46,298.69

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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.