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Finding the Fourth Proportional to 125,378.72, 188,068.28 and 44,386.01

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Solution

The fourth proportional to 125,378.72, 188,068.28 and 44,386.01 is: 66,579.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,378.72 : 188,068.28 = 44,386.01 : x
  2. Step 2: Convert to fraction form
    125,378.72/188,068.28 = 44,386.01/x
  3. Step 3: Cross multiply
    125,378.72x = 188,068.28 × 44,386.01
  4. Step 4: Simplify right side
    125,378.72x = 8,347,600,556.76
  5. Step 5: Solve for x
    x = 8,347,600,556.76/125,378.72
  6. Step 6: Final answer
    x = 66,579.09

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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.