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Finding the Fourth Proportional to 107,980.54, 149,011.40 and 60,232.66

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Solution

The fourth proportional to 107,980.54, 149,011.40 and 60,232.66 is: 83,120.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,980.54 : 149,011.40 = 60,232.66 : x
  2. Step 2: Convert to fraction form
    107,980.54/149,011.40 = 60,232.66/x
  3. Step 3: Cross multiply
    107,980.54x = 149,011.40 × 60,232.66
  4. Step 4: Simplify right side
    107,980.54x = 8,975,352,992.32
  5. Step 5: Solve for x
    x = 8,975,352,992.32/107,980.54
  6. Step 6: Final answer
    x = 83,120.10

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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.