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Finding the Fourth Proportional to 215,275.16, 322,952.70 and 65,528.84

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Solution

The fourth proportional to 215,275.16, 322,952.70 and 65,528.84 is: 98,305.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,275.16 : 322,952.70 = 65,528.84 : x
  2. Step 2: Convert to fraction form
    215,275.16/322,952.70 = 65,528.84/x
  3. Step 3: Cross multiply
    215,275.16x = 322,952.70 × 65,528.84
  4. Step 4: Simplify right side
    215,275.16x = 21,162,715,805.87
  5. Step 5: Solve for x
    x = 21,162,715,805.87/215,275.16
  6. Step 6: Final answer
    x = 98,305.42

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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.