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Finding the Fourth Proportional to 70,458.80, 97,233.94 and 40,248.12

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Solution

The fourth proportional to 70,458.80, 97,233.94 and 40,248.12 is: 55,542.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,458.80 : 97,233.94 = 40,248.12 : x
  2. Step 2: Convert to fraction form
    70,458.80/97,233.94 = 40,248.12/x
  3. Step 3: Cross multiply
    70,458.80x = 97,233.94 × 40,248.12
  4. Step 4: Simplify right side
    70,458.80x = 3,913,483,285.19
  5. Step 5: Solve for x
    x = 3,913,483,285.19/70,458.80
  6. Step 6: Final answer
    x = 55,542.86

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1.5x scale

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.