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Finding the Fourth Proportional to 107,312.40, 148,144.40 and 67,048.52

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Solution

The fourth proportional to 107,312.40, 148,144.40 and 67,048.52 is: 92,560.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,312.40 : 148,144.40 = 67,048.52 : x
  2. Step 2: Convert to fraction form
    107,312.40/148,144.40 = 67,048.52/x
  3. Step 3: Cross multiply
    107,312.40x = 148,144.40 × 67,048.52
  4. Step 4: Simplify right side
    107,312.40x = 9,932,862,766.29
  5. Step 5: Solve for x
    x = 9,932,862,766.29/107,312.40
  6. Step 6: Final answer
    x = 92,560.25

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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.