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Finding the Fourth Proportional to 103,066.10, 154,595.09 and 43,079.08

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Solution

The fourth proportional to 103,066.10, 154,595.09 and 43,079.08 is: 64,616.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,066.10 : 154,595.09 = 43,079.08 : x
  2. Step 2: Convert to fraction form
    103,066.10/154,595.09 = 43,079.08/x
  3. Step 3: Cross multiply
    103,066.10x = 154,595.09 × 43,079.08
  4. Step 4: Simplify right side
    103,066.10x = 6,659,813,476.74
  5. Step 5: Solve for x
    x = 6,659,813,476.74/103,066.10
  6. Step 6: Final answer
    x = 64,616.92

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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.