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Finding the Fourth Proportional to 101,888.16, 152,633.41 and 66,721.20

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Solution

The fourth proportional to 101,888.16, 152,633.41 and 66,721.20 is: 99,951.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,888.16 : 152,633.41 = 66,721.20 : x
  2. Step 2: Convert to fraction form
    101,888.16/152,633.41 = 66,721.20/x
  3. Step 3: Cross multiply
    101,888.16x = 152,633.41 × 66,721.20
  4. Step 4: Simplify right side
    101,888.16x = 10,183,884,275.29
  5. Step 5: Solve for x
    x = 10,183,884,275.29/101,888.16
  6. Step 6: Final answer
    x = 99,951.60

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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.