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Finding the Fourth Proportional to 71,502.79, 98,675.00 and 41,290.75

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Solution

The fourth proportional to 71,502.79, 98,675.00 and 41,290.75 is: 56,981.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,502.79 : 98,675.00 = 41,290.75 : x
  2. Step 2: Convert to fraction form
    71,502.79/98,675.00 = 41,290.75/x
  3. Step 3: Cross multiply
    71,502.79x = 98,675.00 × 41,290.75
  4. Step 4: Simplify right side
    71,502.79x = 4,074,364,303.11
  5. Step 5: Solve for x
    x = 4,074,364,303.11/71,502.79
  6. Step 6: Final answer
    x = 56,981.89

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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.