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Finding the Fourth Proportional to 110,976.96, 153,069.12 and 67,958.40

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Solution

The fourth proportional to 110,976.96, 153,069.12 and 67,958.40 is: 93,734.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,976.96 : 153,069.12 = 67,958.40 : x
  2. Step 2: Convert to fraction form
    110,976.96/153,069.12 = 67,958.40/x
  3. Step 3: Cross multiply
    110,976.96x = 153,069.12 × 67,958.40
  4. Step 4: Simplify right side
    110,976.96x = 10,402,332,484.61
  5. Step 5: Solve for x
    x = 10,402,332,484.61/110,976.96
  6. Step 6: Final answer
    x = 93,734.16

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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.