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Finding the Fourth Proportional to 125,162.83, 186,627.74 and 111,253.51

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Solution

The fourth proportional to 125,162.83, 186,627.74 and 111,253.51 is: 165,887.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,162.83 : 186,627.74 = 111,253.51 : x
  2. Step 2: Convert to fraction form
    125,162.83/186,627.74 = 111,253.51/x
  3. Step 3: Cross multiply
    125,162.83x = 186,627.74 × 111,253.51
  4. Step 4: Simplify right side
    125,162.83x = 20,762,991,138.37
  5. Step 5: Solve for x
    x = 20,762,991,138.37/125,162.83
  6. Step 6: Final answer
    x = 165,887.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.