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Finding the Fourth Proportional to 60,496.80, 90,842.40 and 45,722.40

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Solution

The fourth proportional to 60,496.80, 90,842.40 and 45,722.40 is: 68,657.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,496.80 : 90,842.40 = 45,722.40 : x
  2. Step 2: Convert to fraction form
    60,496.80/90,842.40 = 45,722.40/x
  3. Step 3: Cross multiply
    60,496.80x = 90,842.40 × 45,722.40
  4. Step 4: Simplify right side
    60,496.80x = 4,153,532,549.76
  5. Step 5: Solve for x
    x = 4,153,532,549.76/60,496.80
  6. Step 6: Final answer
    x = 68,657.06

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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.