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Finding the Fourth Proportional to 127,309.68, 190,870.20 and 64,083.51

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Solution

The fourth proportional to 127,309.68, 190,870.20 and 64,083.51 is: 96,077.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,309.68 : 190,870.20 = 64,083.51 : x
  2. Step 2: Convert to fraction form
    127,309.68/190,870.20 = 64,083.51/x
  3. Step 3: Cross multiply
    127,309.68x = 190,870.20 × 64,083.51
  4. Step 4: Simplify right side
    127,309.68x = 12,231,632,370.40
  5. Step 5: Solve for x
    x = 12,231,632,370.40/127,309.68
  6. Step 6: Final answer
    x = 96,077.79

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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.