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Finding the Fourth Proportional to 70,468.64, 97,249.76 and 42,168.88

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Solution

The fourth proportional to 70,468.64, 97,249.76 and 42,168.88 is: 58,194.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,468.64 : 97,249.76 = 42,168.88 : x
  2. Step 2: Convert to fraction form
    70,468.64/97,249.76 = 42,168.88/x
  3. Step 3: Cross multiply
    70,468.64x = 97,249.76 × 42,168.88
  4. Step 4: Simplify right side
    70,468.64x = 4,100,913,459.47
  5. Step 5: Solve for x
    x = 4,100,913,459.47/70,468.64
  6. Step 6: Final answer
    x = 58,194.87

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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.