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Finding the Fourth Proportional to 125,875.40, 188,840.88 and 41,661.80

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Solution

The fourth proportional to 125,875.40, 188,840.88 and 41,661.80 is: 62,501.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,875.40 : 188,840.88 = 41,661.80 : x
  2. Step 2: Convert to fraction form
    125,875.40/188,840.88 = 41,661.80/x
  3. Step 3: Cross multiply
    125,875.40x = 188,840.88 × 41,661.80
  4. Step 4: Simplify right side
    125,875.40x = 7,867,450,974.38
  5. Step 5: Solve for x
    x = 7,867,450,974.38/125,875.40
  6. Step 6: Final answer
    x = 62,501.89

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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.