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Finding the Fourth Proportional to 118,463.28, 163,536 and 70,073.40

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Solution

The fourth proportional to 118,463.28, 163,536 and 70,073.40 is: 96,734.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,463.28 : 163,536 = 70,073.40 : x
  2. Step 2: Convert to fraction form
    118,463.28/163,536 = 70,073.40/x
  3. Step 3: Cross multiply
    118,463.28x = 163,536 × 70,073.40
  4. Step 4: Simplify right side
    118,463.28x = 11,459,523,542.40
  5. Step 5: Solve for x
    x = 11,459,523,542.40/118,463.28
  6. Step 6: Final answer
    x = 96,734.82

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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.