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Finding the Fourth Proportional to 126,258.80, 189,301.80 and 59,730.80

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Solution

The fourth proportional to 126,258.80, 189,301.80 and 59,730.80 is: 89,555.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,258.80 : 189,301.80 = 59,730.80 : x
  2. Step 2: Convert to fraction form
    126,258.80/189,301.80 = 59,730.80/x
  3. Step 3: Cross multiply
    126,258.80x = 189,301.80 × 59,730.80
  4. Step 4: Simplify right side
    126,258.80x = 11,307,147,955.44
  5. Step 5: Solve for x
    x = 11,307,147,955.44/126,258.80
  6. Step 6: Final answer
    x = 89,555.33

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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.