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Finding the Fourth Proportional to 70,526.92, 97,319.94 and 42,231.88

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Solution

The fourth proportional to 70,526.92, 97,319.94 and 42,231.88 is: 58,275.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,526.92 : 97,319.94 = 42,231.88 : x
  2. Step 2: Convert to fraction form
    70,526.92/97,319.94 = 42,231.88/x
  3. Step 3: Cross multiply
    70,526.92x = 97,319.94 × 42,231.88
  4. Step 4: Simplify right side
    70,526.92x = 4,110,004,027.69
  5. Step 5: Solve for x
    x = 4,110,004,027.69/70,526.92
  6. Step 6: Final answer
    x = 58,275.68

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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.