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Finding the Fourth Proportional to 119,571.48, 165,009.06 and 65,860.20

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Solution

The fourth proportional to 119,571.48, 165,009.06 and 65,860.20 is: 90,887.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,571.48 : 165,009.06 = 65,860.20 : x
  2. Step 2: Convert to fraction form
    119,571.48/165,009.06 = 65,860.20/x
  3. Step 3: Cross multiply
    119,571.48x = 165,009.06 × 65,860.20
  4. Step 4: Simplify right side
    119,571.48x = 10,867,529,693.41
  5. Step 5: Solve for x
    x = 10,867,529,693.41/119,571.48
  6. Step 6: Final answer
    x = 90,887.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.