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Finding the Fourth Proportional to 227,617.18, 314,111.70 and 125,642.65

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Solution

The fourth proportional to 227,617.18, 314,111.70 and 125,642.65 is: 173,386.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,617.18 : 314,111.70 = 125,642.65 : x
  2. Step 2: Convert to fraction form
    227,617.18/314,111.70 = 125,642.65/x
  3. Step 3: Cross multiply
    227,617.18x = 314,111.70 × 125,642.65
  4. Step 4: Simplify right side
    227,617.18x = 39,465,826,384.01
  5. Step 5: Solve for x
    x = 39,465,826,384.01/227,617.18
  6. Step 6: Final answer
    x = 173,386.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.