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Finding the Fourth Proportional to 143,476.60, 215,213.12 and 64,535.08

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Solution

The fourth proportional to 143,476.60, 215,213.12 and 64,535.08 is: 96,801.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,476.60 : 215,213.12 = 64,535.08 : x
  2. Step 2: Convert to fraction form
    143,476.60/215,213.12 = 64,535.08/x
  3. Step 3: Cross multiply
    143,476.60x = 215,213.12 × 64,535.08
  4. Step 4: Simplify right side
    143,476.60x = 13,888,795,916.25
  5. Step 5: Solve for x
    x = 13,888,795,916.25/143,476.60
  6. Step 6: Final answer
    x = 96,801.82

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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.