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Finding the Fourth Proportional to 60,434.40, 90,543.60 and 29,200.80

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Solution

The fourth proportional to 60,434.40, 90,543.60 and 29,200.80 is: 43,749.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,434.40 : 90,543.60 = 29,200.80 : x
  2. Step 2: Convert to fraction form
    60,434.40/90,543.60 = 29,200.80/x
  3. Step 3: Cross multiply
    60,434.40x = 90,543.60 × 29,200.80
  4. Step 4: Simplify right side
    60,434.40x = 2,643,945,554.88
  5. Step 5: Solve for x
    x = 2,643,945,554.88/60,434.40
  6. Step 6: Final answer
    x = 43,749.02

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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.