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Finding the Fourth Proportional to 64,210.92, 88,581.12 and 41,557.20

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Solution

The fourth proportional to 64,210.92, 88,581.12 and 41,557.20 is: 57,329.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,210.92 : 88,581.12 = 41,557.20 : x
  2. Step 2: Convert to fraction form
    64,210.92/88,581.12 = 41,557.20/x
  3. Step 3: Cross multiply
    64,210.92x = 88,581.12 × 41,557.20
  4. Step 4: Simplify right side
    64,210.92x = 3,681,183,320.06
  5. Step 5: Solve for x
    x = 3,681,183,320.06/64,210.92
  6. Step 6: Final answer
    x = 57,329.55

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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.