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Finding the Fourth Proportional to 60,512.60, 90,639.30 and 48,848.60

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Solution

The fourth proportional to 60,512.60, 90,639.30 and 48,848.60 is: 73,168.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,512.60 : 90,639.30 = 48,848.60 : x
  2. Step 2: Convert to fraction form
    60,512.60/90,639.30 = 48,848.60/x
  3. Step 3: Cross multiply
    60,512.60x = 90,639.30 × 48,848.60
  4. Step 4: Simplify right side
    60,512.60x = 4,427,602,909.98
  5. Step 5: Solve for x
    x = 4,427,602,909.98/60,512.60
  6. Step 6: Final answer
    x = 73,168.28

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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.