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Finding the Fourth Proportional to 127,713.12, 191,569.56 and 34,216.32

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Solution

The fourth proportional to 127,713.12, 191,569.56 and 34,216.32 is: 51,324.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,713.12 : 191,569.56 = 34,216.32 : x
  2. Step 2: Convert to fraction form
    127,713.12/191,569.56 = 34,216.32/x
  3. Step 3: Cross multiply
    127,713.12x = 191,569.56 × 34,216.32
  4. Step 4: Simplify right side
    127,713.12x = 6,554,805,367.22
  5. Step 5: Solve for x
    x = 6,554,805,367.22/127,713.12
  6. Step 6: Final answer
    x = 51,324.45

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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.