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Finding the Fourth Proportional to 67,407.90, 101,133.45 and 45,246.30

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Solution

The fourth proportional to 67,407.90, 101,133.45 and 45,246.30 is: 67,883.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,407.90 : 101,133.45 = 45,246.30 : x
  2. Step 2: Convert to fraction form
    67,407.90/101,133.45 = 45,246.30/x
  3. Step 3: Cross multiply
    67,407.90x = 101,133.45 × 45,246.30
  4. Step 4: Simplify right side
    67,407.90x = 4,575,914,418.74
  5. Step 5: Solve for x
    x = 4,575,914,418.74/67,407.90
  6. Step 6: Final answer
    x = 67,883.95

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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.