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Finding the Fourth Proportional to 97,245.76, 145,868.78 and 64,113.79

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Solution

The fourth proportional to 97,245.76, 145,868.78 and 64,113.79 is: 96,170.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,245.76 : 145,868.78 = 64,113.79 : x
  2. Step 2: Convert to fraction form
    97,245.76/145,868.78 = 64,113.79/x
  3. Step 3: Cross multiply
    97,245.76x = 145,868.78 × 64,113.79
  4. Step 4: Simplify right side
    97,245.76x = 9,352,200,328.48
  5. Step 5: Solve for x
    x = 9,352,200,328.48/97,245.76
  6. Step 6: Final answer
    x = 96,170.78

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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.