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Finding the Fourth Proportional to 391,246.59, 586,954.08 and 121,369.35

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Solution

The fourth proportional to 391,246.59, 586,954.08 and 121,369.35 is: 182,080.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,246.59 : 586,954.08 = 121,369.35 : x
  2. Step 2: Convert to fraction form
    391,246.59/586,954.08 = 121,369.35/x
  3. Step 3: Cross multiply
    391,246.59x = 586,954.08 × 121,369.35
  4. Step 4: Simplify right side
    391,246.59x = 71,238,232,513.24
  5. Step 5: Solve for x
    x = 71,238,232,513.24/391,246.59
  6. Step 6: Final answer
    x = 182,080.14

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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.