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Finding the Fourth Proportional to 64,155.65, 96,254.84 and 40,435.82

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Solution

The fourth proportional to 64,155.65, 96,254.84 and 40,435.82 is: 60,667.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,155.65 : 96,254.84 = 40,435.82 : x
  2. Step 2: Convert to fraction form
    64,155.65/96,254.84 = 40,435.82/x
  3. Step 3: Cross multiply
    64,155.65x = 96,254.84 × 40,435.82
  4. Step 4: Simplify right side
    64,155.65x = 3,892,143,182.19
  5. Step 5: Solve for x
    x = 3,892,143,182.19/64,155.65
  6. Step 6: Final answer
    x = 60,667.19

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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.