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Finding the Fourth Proportional to 90,195.55, 124,367.99 and 67,461.68

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Solution

The fourth proportional to 90,195.55, 124,367.99 and 67,461.68 is: 93,020.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,195.55 : 124,367.99 = 67,461.68 : x
  2. Step 2: Convert to fraction form
    90,195.55/124,367.99 = 67,461.68/x
  3. Step 3: Cross multiply
    90,195.55x = 124,367.99 × 67,461.68
  4. Step 4: Simplify right side
    90,195.55x = 8,390,074,023.20
  5. Step 5: Solve for x
    x = 8,390,074,023.20/90,195.55
  6. Step 6: Final answer
    x = 93,020.93

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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.