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Finding the Fourth Proportional to 119,043.66, 178,565.49 and 92,768.07

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Solution

The fourth proportional to 119,043.66, 178,565.49 and 92,768.07 is: 139,152.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,043.66 : 178,565.49 = 92,768.07 : x
  2. Step 2: Convert to fraction form
    119,043.66/178,565.49 = 92,768.07/x
  3. Step 3: Cross multiply
    119,043.66x = 178,565.49 × 92,768.07
  4. Step 4: Simplify right side
    119,043.66x = 16,565,175,875.90
  5. Step 5: Solve for x
    x = 16,565,175,875.90/119,043.66
  6. Step 6: Final answer
    x = 139,152.11

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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.