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Finding the Fourth Proportional to 468,642.20, 702,963.30 and 113,655.65

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Solution

The fourth proportional to 468,642.20, 702,963.30 and 113,655.65 is: 170,483.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,642.20 : 702,963.30 = 113,655.65 : x
  2. Step 2: Convert to fraction form
    468,642.20/702,963.30 = 113,655.65/x
  3. Step 3: Cross multiply
    468,642.20x = 702,963.30 × 113,655.65
  4. Step 4: Simplify right side
    468,642.20x = 79,895,750,787.65
  5. Step 5: Solve for x
    x = 79,895,750,787.65/468,642.20
  6. Step 6: Final answer
    x = 170,483.48

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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.