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Finding the Fourth Proportional to 235,105.40, 352,139.70 and 124,167.80

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Solution

The fourth proportional to 235,105.40, 352,139.70 and 124,167.80 is: 185,977.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,105.40 : 352,139.70 = 124,167.80 : x
  2. Step 2: Convert to fraction form
    235,105.40/352,139.70 = 124,167.80/x
  3. Step 3: Cross multiply
    235,105.40x = 352,139.70 × 124,167.80
  4. Step 4: Simplify right side
    235,105.40x = 43,724,411,841.66
  5. Step 5: Solve for x
    x = 43,724,411,841.66/235,105.40
  6. Step 6: Final answer
    x = 185,977.91

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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.