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Finding the Fourth Proportional to 65,399.40, 98,125.20 and 29,877.48

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Solution

The fourth proportional to 65,399.40, 98,125.20 and 29,877.48 is: 44,828.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,399.40 : 98,125.20 = 29,877.48 : x
  2. Step 2: Convert to fraction form
    65,399.40/98,125.20 = 29,877.48/x
  3. Step 3: Cross multiply
    65,399.40x = 98,125.20 × 29,877.48
  4. Step 4: Simplify right side
    65,399.40x = 2,931,733,700.50
  5. Step 5: Solve for x
    x = 2,931,733,700.50/65,399.40
  6. Step 6: Final answer
    x = 44,828.14

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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.