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Finding the Fourth Proportional to 118,664.64, 177,800.40 and 83,432.16

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Solution

The fourth proportional to 118,664.64, 177,800.40 and 83,432.16 is: 125,010.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,664.64 : 177,800.40 = 83,432.16 : x
  2. Step 2: Convert to fraction form
    118,664.64/177,800.40 = 83,432.16/x
  3. Step 3: Cross multiply
    118,664.64x = 177,800.40 × 83,432.16
  4. Step 4: Simplify right side
    118,664.64x = 14,834,271,420.86
  5. Step 5: Solve for x
    x = 14,834,271,420.86/118,664.64
  6. Step 6: Final answer
    x = 125,010.04

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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.