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Finding the Fourth Proportional to 268,184.88, 402,443.43 and 155,917.92

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Solution

The fourth proportional to 268,184.88, 402,443.43 and 155,917.92 is: 233,973.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,184.88 : 402,443.43 = 155,917.92 : x
  2. Step 2: Convert to fraction form
    268,184.88/402,443.43 = 155,917.92/x
  3. Step 3: Cross multiply
    268,184.88x = 402,443.43 × 155,917.92
  4. Step 4: Simplify right side
    268,184.88x = 62,748,142,523.27
  5. Step 5: Solve for x
    x = 62,748,142,523.27/268,184.88
  6. Step 6: Final answer
    x = 233,973.45

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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.