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Finding the Fourth Proportional to 64,210.41, 88,695.02 and 49,287.48

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Solution

The fourth proportional to 64,210.41, 88,695.02 and 49,287.48 is: 68,081.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,210.41 : 88,695.02 = 49,287.48 : x
  2. Step 2: Convert to fraction form
    64,210.41/88,695.02 = 49,287.48/x
  3. Step 3: Cross multiply
    64,210.41x = 88,695.02 × 49,287.48
  4. Step 4: Simplify right side
    64,210.41x = 4,371,554,024.35
  5. Step 5: Solve for x
    x = 4,371,554,024.35/64,210.41
  6. Step 6: Final answer
    x = 68,081.70

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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.