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Finding the Fourth Proportional to 67,502.63, 93,149.76 and 40,309.40

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Solution

The fourth proportional to 67,502.63, 93,149.76 and 40,309.40 is: 55,624.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,502.63 : 93,149.76 = 40,309.40 : x
  2. Step 2: Convert to fraction form
    67,502.63/93,149.76 = 40,309.40/x
  3. Step 3: Cross multiply
    67,502.63x = 93,149.76 × 40,309.40
  4. Step 4: Simplify right side
    67,502.63x = 3,754,810,470.00
  5. Step 5: Solve for x
    x = 3,754,810,470.00/67,502.63
  6. Step 6: Final answer
    x = 55,624.66

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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.