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Finding the Fourth Proportional to 64,370.69, 88,836.78 and 35,693.20

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Solution

The fourth proportional to 64,370.69, 88,836.78 and 35,693.20 is: 49,259.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,370.69 : 88,836.78 = 35,693.20 : x
  2. Step 2: Convert to fraction form
    64,370.69/88,836.78 = 35,693.20/x
  3. Step 3: Cross multiply
    64,370.69x = 88,836.78 × 35,693.20
  4. Step 4: Simplify right side
    64,370.69x = 3,170,868,955.90
  5. Step 5: Solve for x
    x = 3,170,868,955.90/64,370.69
  6. Step 6: Final answer
    x = 49,259.51

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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.