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Finding the Fourth Proportional to 118,877.60, 178,417.20 and 48,807.20

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Solution

The fourth proportional to 118,877.60, 178,417.20 and 48,807.20 is: 73,252.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,877.60 : 178,417.20 = 48,807.20 : x
  2. Step 2: Convert to fraction form
    118,877.60/178,417.20 = 48,807.20/x
  3. Step 3: Cross multiply
    118,877.60x = 178,417.20 × 48,807.20
  4. Step 4: Simplify right side
    118,877.60x = 8,708,043,963.84
  5. Step 5: Solve for x
    x = 8,708,043,963.84/118,877.60
  6. Step 6: Final answer
    x = 73,252.19

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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.