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Finding the Fourth Proportional to 253,148.49, 349,180.31 and 162,360.65

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Solution

The fourth proportional to 253,148.49, 349,180.31 and 162,360.65 is: 223,952.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,148.49 : 349,180.31 = 162,360.65 : x
  2. Step 2: Convert to fraction form
    253,148.49/349,180.31 = 162,360.65/x
  3. Step 3: Cross multiply
    253,148.49x = 349,180.31 × 162,360.65
  4. Step 4: Simplify right side
    253,148.49x = 56,693,139,541.10
  5. Step 5: Solve for x
    x = 56,693,139,541.10/253,148.49
  6. Step 6: Final answer
    x = 223,952.11

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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.