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Finding the Fourth Proportional to 127,752.60, 191,657.70 and 39,010.20

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Solution

The fourth proportional to 127,752.60, 191,657.70 and 39,010.20 is: 58,524.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,752.60 : 191,657.70 = 39,010.20 : x
  2. Step 2: Convert to fraction form
    127,752.60/191,657.70 = 39,010.20/x
  3. Step 3: Cross multiply
    127,752.60x = 191,657.70 × 39,010.20
  4. Step 4: Simplify right side
    127,752.60x = 7,476,605,208.54
  5. Step 5: Solve for x
    x = 7,476,605,208.54/127,752.60
  6. Step 6: Final answer
    x = 58,524.09

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1.5x scale

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.