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Finding the Fourth Proportional to 119,119.71, 178,677.30 and 48,040.86

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Solution

The fourth proportional to 119,119.71, 178,677.30 and 48,040.86 is: 72,060.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,119.71 : 178,677.30 = 48,040.86 : x
  2. Step 2: Convert to fraction form
    119,119.71/178,677.30 = 48,040.86/x
  3. Step 3: Cross multiply
    119,119.71x = 178,677.30 × 48,040.86
  4. Step 4: Simplify right side
    119,119.71x = 8,583,811,154.48
  5. Step 5: Solve for x
    x = 8,583,811,154.48/119,119.71
  6. Step 6: Final answer
    x = 72,060.38

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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.