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Finding the Fourth Proportional to 121,393.04, 167,510.28 and 73,643.52

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Solution

The fourth proportional to 121,393.04, 167,510.28 and 73,643.52 is: 101,620.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,393.04 : 167,510.28 = 73,643.52 : x
  2. Step 2: Convert to fraction form
    121,393.04/167,510.28 = 73,643.52/x
  3. Step 3: Cross multiply
    121,393.04x = 167,510.28 × 73,643.52
  4. Step 4: Simplify right side
    121,393.04x = 12,336,046,655.39
  5. Step 5: Solve for x
    x = 12,336,046,655.39/121,393.04
  6. Step 6: Final answer
    x = 101,620.71

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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.