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Finding the Fourth Proportional to 73,424.16, 101,280.24 and 64,015.20

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Solution

The fourth proportional to 73,424.16, 101,280.24 and 64,015.20 is: 88,301.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,424.16 : 101,280.24 = 64,015.20 : x
  2. Step 2: Convert to fraction form
    73,424.16/101,280.24 = 64,015.20/x
  3. Step 3: Cross multiply
    73,424.16x = 101,280.24 × 64,015.20
  4. Step 4: Simplify right side
    73,424.16x = 6,483,474,819.65
  5. Step 5: Solve for x
    x = 6,483,474,819.65/73,424.16
  6. Step 6: Final answer
    x = 88,301.65

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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.