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Finding the Fourth Proportional to 65,708.70, 98,433.45 and 61,043.10

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Solution

The fourth proportional to 65,708.70, 98,433.45 and 61,043.10 is: 91,444.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,708.70 : 98,433.45 = 61,043.10 : x
  2. Step 2: Convert to fraction form
    65,708.70/98,433.45 = 61,043.10/x
  3. Step 3: Cross multiply
    65,708.70x = 98,433.45 × 61,043.10
  4. Step 4: Simplify right side
    65,708.70x = 6,008,682,931.70
  5. Step 5: Solve for x
    x = 6,008,682,931.70/65,708.70
  6. Step 6: Final answer
    x = 91,444.25

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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.