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Finding the Fourth Proportional to 110,805.30, 153,943.57 and 109,476.70

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Solution

The fourth proportional to 110,805.30, 153,943.57 and 109,476.70 is: 152,097.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,805.30 : 153,943.57 = 109,476.70 : x
  2. Step 2: Convert to fraction form
    110,805.30/153,943.57 = 109,476.70/x
  3. Step 3: Cross multiply
    110,805.30x = 153,943.57 × 109,476.70
  4. Step 4: Simplify right side
    110,805.30x = 16,853,233,781.81
  5. Step 5: Solve for x
    x = 16,853,233,781.81/110,805.30
  6. Step 6: Final answer
    x = 152,097.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.