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Finding the Fourth Proportional to 308,956.60, 463,443.56 and 109,248.76

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Solution

The fourth proportional to 308,956.60, 463,443.56 and 109,248.76 is: 163,876.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,956.60 : 463,443.56 = 109,248.76 : x
  2. Step 2: Convert to fraction form
    308,956.60/463,443.56 = 109,248.76/x
  3. Step 3: Cross multiply
    308,956.60x = 463,443.56 × 109,248.76
  4. Step 4: Simplify right side
    308,956.60x = 50,630,634,259.99
  5. Step 5: Solve for x
    x = 50,630,634,259.99/308,956.60
  6. Step 6: Final answer
    x = 163,876.20

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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.