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Finding the Fourth Proportional to 65,765.42, 98,648.16 and 61,041.50

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Solution

The fourth proportional to 65,765.42, 98,648.16 and 61,041.50 is: 91,562.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,765.42 : 98,648.16 = 61,041.50 : x
  2. Step 2: Convert to fraction form
    65,765.42/98,648.16 = 61,041.50/x
  3. Step 3: Cross multiply
    65,765.42x = 98,648.16 × 61,041.50
  4. Step 4: Simplify right side
    65,765.42x = 6,021,631,658.64
  5. Step 5: Solve for x
    x = 6,021,631,658.64/65,765.42
  6. Step 6: Final answer
    x = 91,562.28

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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.