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Finding the Fourth Proportional to 71,062.96, 98,070.06 and 40,858.08

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Solution

The fourth proportional to 71,062.96, 98,070.06 and 40,858.08 is: 56,385.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,062.96 : 98,070.06 = 40,858.08 : x
  2. Step 2: Convert to fraction form
    71,062.96/98,070.06 = 40,858.08/x
  3. Step 3: Cross multiply
    71,062.96x = 98,070.06 × 40,858.08
  4. Step 4: Simplify right side
    71,062.96x = 4,006,954,357.08
  5. Step 5: Solve for x
    x = 4,006,954,357.08/71,062.96
  6. Step 6: Final answer
    x = 56,385.98

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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.