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Finding the Fourth Proportional to 305,873.90, 458,875.65 and 92,624.30

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Solution

The fourth proportional to 305,873.90, 458,875.65 and 92,624.30 is: 138,956.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,873.90 : 458,875.65 = 92,624.30 : x
  2. Step 2: Convert to fraction form
    305,873.90/458,875.65 = 92,624.30/x
  3. Step 3: Cross multiply
    305,873.90x = 458,875.65 × 92,624.30
  4. Step 4: Simplify right side
    305,873.90x = 42,503,035,868.30
  5. Step 5: Solve for x
    x = 42,503,035,868.30/305,873.90
  6. Step 6: Final answer
    x = 138,956.07

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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.