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Finding the Fourth Proportional to 71,210.76, 106,839.51 and 29,126.24

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Solution

The fourth proportional to 71,210.76, 106,839.51 and 29,126.24 is: 43,698.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,210.76 : 106,839.51 = 29,126.24 : x
  2. Step 2: Convert to fraction form
    71,210.76/106,839.51 = 29,126.24/x
  3. Step 3: Cross multiply
    71,210.76x = 106,839.51 × 29,126.24
  4. Step 4: Simplify right side
    71,210.76x = 3,111,833,209.74
  5. Step 5: Solve for x
    x = 3,111,833,209.74/71,210.76
  6. Step 6: Final answer
    x = 43,698.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.