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Finding the Fourth Proportional to 60,468.75, 90,693.41 and 42,885.27

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Solution

The fourth proportional to 60,468.75, 90,693.41 and 42,885.27 is: 64,321.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,468.75 : 90,693.41 = 42,885.27 : x
  2. Step 2: Convert to fraction form
    60,468.75/90,693.41 = 42,885.27/x
  3. Step 3: Cross multiply
    60,468.75x = 90,693.41 × 42,885.27
  4. Step 4: Simplify right side
    60,468.75x = 3,889,411,160.64
  5. Step 5: Solve for x
    x = 3,889,411,160.64/60,468.75
  6. Step 6: Final answer
    x = 64,321.01

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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.