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Finding the Fourth Proportional to 312,585.90, 468,187.65 and 125,501.10

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Solution

The fourth proportional to 312,585.90, 468,187.65 and 125,501.10 is: 187,974.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,585.90 : 468,187.65 = 125,501.10 : x
  2. Step 2: Convert to fraction form
    312,585.90/468,187.65 = 125,501.10/x
  3. Step 3: Cross multiply
    312,585.90x = 468,187.65 × 125,501.10
  4. Step 4: Simplify right side
    312,585.90x = 58,758,065,081.42
  5. Step 5: Solve for x
    x = 58,758,065,081.42/312,585.90
  6. Step 6: Final answer
    x = 187,974.14

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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.