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Finding the Fourth Proportional to 118,366.52, 163,349.36 and 64,654.42

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Solution

The fourth proportional to 118,366.52, 163,349.36 and 64,654.42 is: 89,225.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,366.52 : 163,349.36 = 64,654.42 : x
  2. Step 2: Convert to fraction form
    118,366.52/163,349.36 = 64,654.42/x
  3. Step 3: Cross multiply
    118,366.52x = 163,349.36 × 64,654.42
  4. Step 4: Simplify right side
    118,366.52x = 10,561,258,128.17
  5. Step 5: Solve for x
    x = 10,561,258,128.17/118,366.52
  6. Step 6: Final answer
    x = 89,225.05

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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.