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Finding the Fourth Proportional to 60,588.60, 90,980.10 and 40,954.20

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Solution

The fourth proportional to 60,588.60, 90,980.10 and 40,954.20 is: 61,497.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,588.60 : 90,980.10 = 40,954.20 : x
  2. Step 2: Convert to fraction form
    60,588.60/90,980.10 = 40,954.20/x
  3. Step 3: Cross multiply
    60,588.60x = 90,980.10 × 40,954.20
  4. Step 4: Simplify right side
    60,588.60x = 3,726,017,211.42
  5. Step 5: Solve for x
    x = 3,726,017,211.42/60,588.60
  6. Step 6: Final answer
    x = 61,497.00

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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.