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Finding the Fourth Proportional to 125,788.60, 188,678.70 and 37,043.68

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Solution

The fourth proportional to 125,788.60, 188,678.70 and 37,043.68 is: 55,564.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,788.60 : 188,678.70 = 37,043.68 : x
  2. Step 2: Convert to fraction form
    125,788.60/188,678.70 = 37,043.68/x
  3. Step 3: Cross multiply
    125,788.60x = 188,678.70 × 37,043.68
  4. Step 4: Simplify right side
    125,788.60x = 6,989,353,385.62
  5. Step 5: Solve for x
    x = 6,989,353,385.62/125,788.60
  6. Step 6: Final answer
    x = 55,564.28

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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.