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Finding the Fourth Proportional to 71,291.71, 98,407.16 and 41,089.08

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Solution

The fourth proportional to 71,291.71, 98,407.16 and 41,089.08 is: 56,717.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,291.71 : 98,407.16 = 41,089.08 : x
  2. Step 2: Convert to fraction form
    71,291.71/98,407.16 = 41,089.08/x
  3. Step 3: Cross multiply
    71,291.71x = 98,407.16 × 41,089.08
  4. Step 4: Simplify right side
    71,291.71x = 4,043,459,669.81
  5. Step 5: Solve for x
    x = 4,043,459,669.81/71,291.71
  6. Step 6: Final answer
    x = 56,717.11

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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.