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Finding the Fourth Proportional to 60,435.78, 90,719.28 and 44,591.10

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Solution

The fourth proportional to 60,435.78, 90,719.28 and 44,591.10 is: 66,935.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,435.78 : 90,719.28 = 44,591.10 : x
  2. Step 2: Convert to fraction form
    60,435.78/90,719.28 = 44,591.10/x
  3. Step 3: Cross multiply
    60,435.78x = 90,719.28 × 44,591.10
  4. Step 4: Simplify right side
    60,435.78x = 4,045,272,486.41
  5. Step 5: Solve for x
    x = 4,045,272,486.41/60,435.78
  6. Step 6: Final answer
    x = 66,935.06

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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.