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Finding the Fourth Proportional to 180,017.92, 248,426.81 and 99,443.76

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Solution

The fourth proportional to 180,017.92, 248,426.81 and 99,443.76 is: 137,233.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,017.92 : 248,426.81 = 99,443.76 : x
  2. Step 2: Convert to fraction form
    180,017.92/248,426.81 = 99,443.76/x
  3. Step 3: Cross multiply
    180,017.92x = 248,426.81 × 99,443.76
  4. Step 4: Simplify right side
    180,017.92x = 24,704,494,331.85
  5. Step 5: Solve for x
    x = 24,704,494,331.85/180,017.92
  6. Step 6: Final answer
    x = 137,233.53

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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.