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Finding the Fourth Proportional to 125,688.16, 188,668.86 and 50,859.82

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Solution

The fourth proportional to 125,688.16, 188,668.86 and 50,859.82 is: 76,345.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,688.16 : 188,668.86 = 50,859.82 : x
  2. Step 2: Convert to fraction form
    125,688.16/188,668.86 = 50,859.82/x
  3. Step 3: Cross multiply
    125,688.16x = 188,668.86 × 50,859.82
  4. Step 4: Simplify right side
    125,688.16x = 9,595,664,259.21
  5. Step 5: Solve for x
    x = 9,595,664,259.21/125,688.16
  6. Step 6: Final answer
    x = 76,345.01

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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.