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Finding the Fourth Proportional to 70,458.87, 97,234.04 and 40,248.18

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Solution

The fourth proportional to 70,458.87, 97,234.04 and 40,248.18 is: 55,542.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,458.87 : 97,234.04 = 40,248.18 : x
  2. Step 2: Convert to fraction form
    70,458.87/97,234.04 = 40,248.18/x
  3. Step 3: Cross multiply
    70,458.87x = 97,234.04 × 40,248.18
  4. Step 4: Simplify right side
    70,458.87x = 3,913,492,942.81
  5. Step 5: Solve for x
    x = 3,913,492,942.81/70,458.87
  6. Step 6: Final answer
    x = 55,542.94

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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.