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Finding the Fourth Proportional to 118,750.30, 163,869.35 and 65,024.94

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Solution

The fourth proportional to 118,750.30, 163,869.35 and 65,024.94 is: 89,731.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,750.30 : 163,869.35 = 65,024.94 : x
  2. Step 2: Convert to fraction form
    118,750.30/163,869.35 = 65,024.94/x
  3. Step 3: Cross multiply
    118,750.30x = 163,869.35 × 65,024.94
  4. Step 4: Simplify right side
    118,750.30x = 10,655,594,940.97
  5. Step 5: Solve for x
    x = 10,655,594,940.97/118,750.30
  6. Step 6: Final answer
    x = 89,731.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.