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Finding the Fourth Proportional to 65,045.60, 97,422.60 and 53,381.60

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Solution

The fourth proportional to 65,045.60, 97,422.60 and 53,381.60 is: 79,952.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,045.60 : 97,422.60 = 53,381.60 : x
  2. Step 2: Convert to fraction form
    65,045.60/97,422.60 = 53,381.60/x
  3. Step 3: Cross multiply
    65,045.60x = 97,422.60 × 53,381.60
  4. Step 4: Simplify right side
    65,045.60x = 5,200,574,264.16
  5. Step 5: Solve for x
    x = 5,200,574,264.16/65,045.60
  6. Step 6: Final answer
    x = 79,952.74

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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.