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Finding the Fourth Proportional to 107,713, 148,655.46 and 63,038.44

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Solution

The fourth proportional to 107,713, 148,655.46 and 63,038.44 is: 86,999.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,713 : 148,655.46 = 63,038.44 : x
  2. Step 2: Convert to fraction form
    107,713/148,655.46 = 63,038.44/x
  3. Step 3: Cross multiply
    107,713x = 148,655.46 × 63,038.44
  4. Step 4: Simplify right side
    107,713x = 9,371,008,295.88
  5. Step 5: Solve for x
    x = 9,371,008,295.88/107,713
  6. Step 6: Final answer
    x = 86,999.79

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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.