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Finding the Fourth Proportional to 367,803.70, 551,705.55 and 146,187.70

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Solution

The fourth proportional to 367,803.70, 551,705.55 and 146,187.70 is: 219,281.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,803.70 : 551,705.55 = 146,187.70 : x
  2. Step 2: Convert to fraction form
    367,803.70/551,705.55 = 146,187.70/x
  3. Step 3: Cross multiply
    367,803.70x = 551,705.55 × 146,187.70
  4. Step 4: Simplify right side
    367,803.70x = 80,652,565,431.74
  5. Step 5: Solve for x
    x = 80,652,565,431.74/367,803.70
  6. Step 6: Final answer
    x = 219,281.55

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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.