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Finding the Fourth Proportional to 64,543.22, 89,078.00 and 36,248.91

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Solution

The fourth proportional to 64,543.22, 89,078.00 and 36,248.91 is: 50,028.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,543.22 : 89,078.00 = 36,248.91 : x
  2. Step 2: Convert to fraction form
    64,543.22/89,078.00 = 36,248.91/x
  3. Step 3: Cross multiply
    64,543.22x = 89,078.00 × 36,248.91
  4. Step 4: Simplify right side
    64,543.22x = 3,228,980,223.74
  5. Step 5: Solve for x
    x = 3,228,980,223.74/64,543.22
  6. Step 6: Final answer
    x = 50,028.19

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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.