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Finding the Fourth Proportional to 202,346.52, 279,242.28 and 111,702.12

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Solution

The fourth proportional to 202,346.52, 279,242.28 and 111,702.12 is: 154,151.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,346.52 : 279,242.28 = 111,702.12 : x
  2. Step 2: Convert to fraction form
    202,346.52/279,242.28 = 111,702.12/x
  3. Step 3: Cross multiply
    202,346.52x = 279,242.28 × 111,702.12
  4. Step 4: Simplify right side
    202,346.52x = 31,191,954,669.63
  5. Step 5: Solve for x
    x = 31,191,954,669.63/202,346.52
  6. Step 6: Final answer
    x = 154,151.18

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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.