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Finding the Fourth Proportional to 119,252.61, 178,914.69 and 48,138.66

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Solution

The fourth proportional to 119,252.61, 178,914.69 and 48,138.66 is: 72,222.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,252.61 : 178,914.69 = 48,138.66 : x
  2. Step 2: Convert to fraction form
    119,252.61/178,914.69 = 48,138.66/x
  3. Step 3: Cross multiply
    119,252.61x = 178,914.69 × 48,138.66
  4. Step 4: Simplify right side
    119,252.61x = 8,612,713,430.92
  5. Step 5: Solve for x
    x = 8,612,713,430.92/119,252.61
  6. Step 6: Final answer
    x = 72,222.43

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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.