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Finding the Fourth Proportional to 349,862.40, 524,793.60 and 113,212.80

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Solution

The fourth proportional to 349,862.40, 524,793.60 and 113,212.80 is: 169,819.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,862.40 : 524,793.60 = 113,212.80 : x
  2. Step 2: Convert to fraction form
    349,862.40/524,793.60 = 113,212.80/x
  3. Step 3: Cross multiply
    349,862.40x = 524,793.60 × 113,212.80
  4. Step 4: Simplify right side
    349,862.40x = 59,413,352,878.08
  5. Step 5: Solve for x
    x = 59,413,352,878.08/349,862.40
  6. Step 6: Final answer
    x = 169,819.20

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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.