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Finding the Fourth Proportional to 203,346.84, 280,615.28 and 112,702.52

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Solution

The fourth proportional to 203,346.84, 280,615.28 and 112,702.52 is: 155,527.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,346.84 : 280,615.28 = 112,702.52 : x
  2. Step 2: Convert to fraction form
    203,346.84/280,615.28 = 112,702.52/x
  3. Step 3: Cross multiply
    203,346.84x = 280,615.28 × 112,702.52
  4. Step 4: Simplify right side
    203,346.84x = 31,626,049,206.51
  5. Step 5: Solve for x
    x = 31,626,049,206.51/203,346.84
  6. Step 6: Final answer
    x = 155,527.62

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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.