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Finding the Fourth Proportional to 551,813.19, 827,711.60 and 152,445.12

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Solution

The fourth proportional to 551,813.19, 827,711.60 and 152,445.12 is: 228,665.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,813.19 : 827,711.60 = 152,445.12 : x
  2. Step 2: Convert to fraction form
    551,813.19/827,711.60 = 152,445.12/x
  3. Step 3: Cross multiply
    551,813.19x = 827,711.60 × 152,445.12
  4. Step 4: Simplify right side
    551,813.19x = 126,180,593,425.17
  5. Step 5: Solve for x
    x = 126,180,593,425.17/551,813.19
  6. Step 6: Final answer
    x = 228,665.42

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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.