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Finding the Fourth Proportional to 228,624.51, 342,811.47 and 70,809.15

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Solution

The fourth proportional to 228,624.51, 342,811.47 and 70,809.15 is: 106,174.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,624.51 : 342,811.47 = 70,809.15 : x
  2. Step 2: Convert to fraction form
    228,624.51/342,811.47 = 70,809.15/x
  3. Step 3: Cross multiply
    228,624.51x = 342,811.47 × 70,809.15
  4. Step 4: Simplify right side
    228,624.51x = 24,274,188,800.95
  5. Step 5: Solve for x
    x = 24,274,188,800.95/228,624.51
  6. Step 6: Final answer
    x = 106,174.92

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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.