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Finding the Fourth Proportional to 215,068.28, 322,580.28 and 65,302.52

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Solution

The fourth proportional to 215,068.28, 322,580.28 and 65,302.52 is: 97,947.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,068.28 : 322,580.28 = 65,302.52 : x
  2. Step 2: Convert to fraction form
    215,068.28/322,580.28 = 65,302.52/x
  3. Step 3: Cross multiply
    215,068.28x = 322,580.28 × 65,302.52
  4. Step 4: Simplify right side
    215,068.28x = 21,065,305,186.31
  5. Step 5: Solve for x
    x = 21,065,305,186.31/215,068.28
  6. Step 6: Final answer
    x = 97,947.06

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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.