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Finding the Fourth Proportional to 64,113.75, 88,475.35 and 35,819.65

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Solution

The fourth proportional to 64,113.75, 88,475.35 and 35,819.65 is: 49,430.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,113.75 : 88,475.35 = 35,819.65 : x
  2. Step 2: Convert to fraction form
    64,113.75/88,475.35 = 35,819.65/x
  3. Step 3: Cross multiply
    64,113.75x = 88,475.35 × 35,819.65
  4. Step 4: Simplify right side
    64,113.75x = 3,169,155,891.53
  5. Step 5: Solve for x
    x = 3,169,155,891.53/64,113.75
  6. Step 6: Final answer
    x = 49,430.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.