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Finding the Fourth Proportional to 316,644.48, 475,026.48 and 127,119.69

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Solution

The fourth proportional to 316,644.48, 475,026.48 and 127,119.69 is: 190,703.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,644.48 : 475,026.48 = 127,119.69 : x
  2. Step 2: Convert to fraction form
    316,644.48/475,026.48 = 127,119.69/x
  3. Step 3: Cross multiply
    316,644.48x = 475,026.48 × 127,119.69
  4. Step 4: Simplify right side
    316,644.48x = 60,385,218,879.39
  5. Step 5: Solve for x
    x = 60,385,218,879.39/316,644.48
  6. Step 6: Final answer
    x = 190,703.53

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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.