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Finding the Fourth Proportional to 71,973.10, 107,959.65 and 63,225.10

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Solution

The fourth proportional to 71,973.10, 107,959.65 and 63,225.10 is: 94,837.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,973.10 : 107,959.65 = 63,225.10 : x
  2. Step 2: Convert to fraction form
    71,973.10/107,959.65 = 63,225.10/x
  3. Step 3: Cross multiply
    71,973.10x = 107,959.65 × 63,225.10
  4. Step 4: Simplify right side
    71,973.10x = 6,825,759,667.22
  5. Step 5: Solve for x
    x = 6,825,759,667.22/71,973.10
  6. Step 6: Final answer
    x = 94,837.65

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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.