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Finding the Fourth Proportional to 79,116.62, 109,171.28 and 63,024.91

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Solution

The fourth proportional to 79,116.62, 109,171.28 and 63,024.91 is: 86,966.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,116.62 : 109,171.28 = 63,024.91 : x
  2. Step 2: Convert to fraction form
    79,116.62/109,171.28 = 63,024.91/x
  3. Step 3: Cross multiply
    79,116.62x = 109,171.28 × 63,024.91
  4. Step 4: Simplify right side
    79,116.62x = 6,880,509,235.60
  5. Step 5: Solve for x
    x = 6,880,509,235.60/79,116.62
  6. Step 6: Final answer
    x = 86,966.68

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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.