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Finding the Fourth Proportional to 64,959.20, 97,371.60 and 35,314.40

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Solution

The fourth proportional to 64,959.20, 97,371.60 and 35,314.40 is: 52,935.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,959.20 : 97,371.60 = 35,314.40 : x
  2. Step 2: Convert to fraction form
    64,959.20/97,371.60 = 35,314.40/x
  3. Step 3: Cross multiply
    64,959.20x = 97,371.60 × 35,314.40
  4. Step 4: Simplify right side
    64,959.20x = 3,438,619,631.04
  5. Step 5: Solve for x
    x = 3,438,619,631.04/64,959.20
  6. Step 6: Final answer
    x = 52,935.07

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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.