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Finding the Fourth Proportional to 70,460.80, 97,236.70 and 40,250.12

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Solution

The fourth proportional to 70,460.80, 97,236.70 and 40,250.12 is: 55,545.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,460.80 : 97,236.70 = 40,250.12 : x
  2. Step 2: Convert to fraction form
    70,460.80/97,236.70 = 40,250.12/x
  3. Step 3: Cross multiply
    70,460.80x = 97,236.70 × 40,250.12
  4. Step 4: Simplify right side
    70,460.80x = 3,913,788,843.40
  5. Step 5: Solve for x
    x = 3,913,788,843.40/70,460.80
  6. Step 6: Final answer
    x = 55,545.62

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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.