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Finding the Fourth Proportional to 356,854.35, 535,253.71 and 132,109.05

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Solution

The fourth proportional to 356,854.35, 535,253.71 and 132,109.05 is: 198,153.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,854.35 : 535,253.71 = 132,109.05 : x
  2. Step 2: Convert to fraction form
    356,854.35/535,253.71 = 132,109.05/x
  3. Step 3: Cross multiply
    356,854.35x = 535,253.71 × 132,109.05
  4. Step 4: Simplify right side
    356,854.35x = 70,711,859,137.08
  5. Step 5: Solve for x
    x = 70,711,859,137.08/356,854.35
  6. Step 6: Final answer
    x = 198,153.28

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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.