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Finding the Fourth Proportional to 118,304.85, 163,264.56 and 64,593.96

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Solution

The fourth proportional to 118,304.85, 163,264.56 and 64,593.96 is: 89,141.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,304.85 : 163,264.56 = 64,593.96 : x
  2. Step 2: Convert to fraction form
    118,304.85/163,264.56 = 64,593.96/x
  3. Step 3: Cross multiply
    118,304.85x = 163,264.56 × 64,593.96
  4. Step 4: Simplify right side
    118,304.85x = 10,545,903,966.93
  5. Step 5: Solve for x
    x = 10,545,903,966.93/118,304.85
  6. Step 6: Final answer
    x = 89,141.77

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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.