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Finding the Fourth Proportional to 107,314.81, 148,101.14 and 61,994.70

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Solution

The fourth proportional to 107,314.81, 148,101.14 and 61,994.70 is: 85,556.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,314.81 : 148,101.14 = 61,994.70 : x
  2. Step 2: Convert to fraction form
    107,314.81/148,101.14 = 61,994.70/x
  3. Step 3: Cross multiply
    107,314.81x = 148,101.14 × 61,994.70
  4. Step 4: Simplify right side
    107,314.81x = 9,181,485,898.94
  5. Step 5: Solve for x
    x = 9,181,485,898.94/107,314.81
  6. Step 6: Final answer
    x = 85,556.56

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1.5x scale

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.