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Finding the Fourth Proportional to 125,637.58, 188,479.46 and 41,402.71

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Solution

The fourth proportional to 125,637.58, 188,479.46 and 41,402.71 is: 62,111.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,637.58 : 188,479.46 = 41,402.71 : x
  2. Step 2: Convert to fraction form
    125,637.58/188,479.46 = 41,402.71/x
  3. Step 3: Cross multiply
    125,637.58x = 188,479.46 × 41,402.71
  4. Step 4: Simplify right side
    125,637.58x = 7,803,559,745.12
  5. Step 5: Solve for x
    x = 7,803,559,745.12/125,637.58
  6. Step 6: Final answer
    x = 62,111.67

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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.