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Finding the Fourth Proportional to 65,010.60, 97,515.90 and 61,122.60

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Solution

The fourth proportional to 65,010.60, 97,515.90 and 61,122.60 is: 91,683.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,010.60 : 97,515.90 = 61,122.60 : x
  2. Step 2: Convert to fraction form
    65,010.60/97,515.90 = 61,122.60/x
  3. Step 3: Cross multiply
    65,010.60x = 97,515.90 × 61,122.60
  4. Step 4: Simplify right side
    65,010.60x = 5,960,425,349.34
  5. Step 5: Solve for x
    x = 5,960,425,349.34/65,010.60
  6. Step 6: Final answer
    x = 91,683.90

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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.