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Finding the Fourth Proportional to 60,590.16, 90,839.88 and 40,813.20

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Solution

The fourth proportional to 60,590.16, 90,839.88 and 40,813.20 is: 61,189.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,590.16 : 90,839.88 = 40,813.20 : x
  2. Step 2: Convert to fraction form
    60,590.16/90,839.88 = 40,813.20/x
  3. Step 3: Cross multiply
    60,590.16x = 90,839.88 × 40,813.20
  4. Step 4: Simplify right side
    60,590.16x = 3,707,466,190.42
  5. Step 5: Solve for x
    x = 3,707,466,190.42/60,590.16
  6. Step 6: Final answer
    x = 61,189.25

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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.