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Finding the Fourth Proportional to 107,078.80, 160,618.20 and 65,606.80

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Solution

The fourth proportional to 107,078.80, 160,618.20 and 65,606.80 is: 98,410.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,078.80 : 160,618.20 = 65,606.80 : x
  2. Step 2: Convert to fraction form
    107,078.80/160,618.20 = 65,606.80/x
  3. Step 3: Cross multiply
    107,078.80x = 160,618.20 × 65,606.80
  4. Step 4: Simplify right side
    107,078.80x = 10,537,646,123.76
  5. Step 5: Solve for x
    x = 10,537,646,123.76/107,078.80
  6. Step 6: Final answer
    x = 98,410.20

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1.5x scale

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.