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Finding the Fourth Proportional to 118,542.47, 163,588.50 and 64,827.45

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Solution

The fourth proportional to 118,542.47, 163,588.50 and 64,827.45 is: 89,461.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,542.47 : 163,588.50 = 64,827.45 : x
  2. Step 2: Convert to fraction form
    118,542.47/163,588.50 = 64,827.45/x
  3. Step 3: Cross multiply
    118,542.47x = 163,588.50 × 64,827.45
  4. Step 4: Simplify right side
    118,542.47x = 10,605,025,304.33
  5. Step 5: Solve for x
    x = 10,605,025,304.33/118,542.47
  6. Step 6: Final answer
    x = 89,461.83

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1.5x scale

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.