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Finding the Fourth Proportional to 543,102.12, 814,653.12 and 169,154.28

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Solution

The fourth proportional to 543,102.12, 814,653.12 and 169,154.28 is: 253,731.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,102.12 : 814,653.12 = 169,154.28 : x
  2. Step 2: Convert to fraction form
    543,102.12/814,653.12 = 169,154.28/x
  3. Step 3: Cross multiply
    543,102.12x = 814,653.12 × 169,154.28
  4. Step 4: Simplify right side
    543,102.12x = 137,802,061,963.35
  5. Step 5: Solve for x
    x = 137,802,061,963.35/543,102.12
  6. Step 6: Final answer
    x = 253,731.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.