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Finding the Fourth Proportional to 143,496.08, 215,111.30 and 63,491.64

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Solution

The fourth proportional to 143,496.08, 215,111.30 and 63,491.64 is: 95,178.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,496.08 : 215,111.30 = 63,491.64 : x
  2. Step 2: Convert to fraction form
    143,496.08/215,111.30 = 63,491.64/x
  3. Step 3: Cross multiply
    143,496.08x = 215,111.30 × 63,491.64
  4. Step 4: Simplify right side
    143,496.08x = 13,657,769,219.53
  5. Step 5: Solve for x
    x = 13,657,769,219.53/143,496.08
  6. Step 6: Final answer
    x = 95,178.69

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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.