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Finding the Fourth Proportional to 107,263.80, 148,003.50 and 61,338.02

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Solution

The fourth proportional to 107,263.80, 148,003.50 and 61,338.02 is: 84,634.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,263.80 : 148,003.50 = 61,338.02 : x
  2. Step 2: Convert to fraction form
    107,263.80/148,003.50 = 61,338.02/x
  3. Step 3: Cross multiply
    107,263.80x = 148,003.50 × 61,338.02
  4. Step 4: Simplify right side
    107,263.80x = 9,078,241,643.07
  5. Step 5: Solve for x
    x = 9,078,241,643.07/107,263.80
  6. Step 6: Final answer
    x = 84,634.72

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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.