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Finding the Fourth Proportional to 125,632, 188,345.94 and 69,469.84

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Solution

The fourth proportional to 125,632, 188,345.94 and 69,469.84 is: 104,148.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,632 : 188,345.94 = 69,469.84 : x
  2. Step 2: Convert to fraction form
    125,632/188,345.94 = 69,469.84/x
  3. Step 3: Cross multiply
    125,632x = 188,345.94 × 69,469.84
  4. Step 4: Simplify right side
    125,632x = 13,084,362,316.45
  5. Step 5: Solve for x
    x = 13,084,362,316.45/125,632
  6. Step 6: Final answer
    x = 104,148.32

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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.