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Finding the Fourth Proportional to 372,746.70, 514,396.31 and 202,980.69

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Solution

The fourth proportional to 372,746.70, 514,396.31 and 202,980.69 is: 280,116.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,746.70 : 514,396.31 = 202,980.69 : x
  2. Step 2: Convert to fraction form
    372,746.70/514,396.31 = 202,980.69/x
  3. Step 3: Cross multiply
    372,746.70x = 514,396.31 × 202,980.69
  4. Step 4: Simplify right side
    372,746.70x = 104,412,517,937.25
  5. Step 5: Solve for x
    x = 104,412,517,937.25/372,746.70
  6. Step 6: Final answer
    x = 280,116.55

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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.