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Finding the Fourth Proportional to 357,304.13, 535,956.20 and 107,986.13

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Solution

The fourth proportional to 357,304.13, 535,956.20 and 107,986.13 is: 161,979.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,304.13 : 535,956.20 = 107,986.13 : x
  2. Step 2: Convert to fraction form
    357,304.13/535,956.20 = 107,986.13/x
  3. Step 3: Cross multiply
    357,304.13x = 535,956.20 × 107,986.13
  4. Step 4: Simplify right side
    357,304.13x = 57,875,832,667.79
  5. Step 5: Solve for x
    x = 57,875,832,667.79/357,304.13
  6. Step 6: Final answer
    x = 161,979.19

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Similar ratio
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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.