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Finding the Fourth Proportional to 228,471.60, 342,721.98 and 70,686.84

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Solution

The fourth proportional to 228,471.60, 342,721.98 and 70,686.84 is: 106,034.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,471.60 : 342,721.98 = 70,686.84 : x
  2. Step 2: Convert to fraction form
    228,471.60/342,721.98 = 70,686.84/x
  3. Step 3: Cross multiply
    228,471.60x = 342,721.98 × 70,686.84
  4. Step 4: Simplify right side
    228,471.60x = 24,225,933,764.74
  5. Step 5: Solve for x
    x = 24,225,933,764.74/228,471.60
  6. Step 6: Final answer
    x = 106,034.77

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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.