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Finding the Fourth Proportional to 143,508.96, 197,930.16 and 93,224.16

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Solution

The fourth proportional to 143,508.96, 197,930.16 and 93,224.16 is: 128,576.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,508.96 : 197,930.16 = 93,224.16 : x
  2. Step 2: Convert to fraction form
    143,508.96/197,930.16 = 93,224.16/x
  3. Step 3: Cross multiply
    143,508.96x = 197,930.16 × 93,224.16
  4. Step 4: Simplify right side
    143,508.96x = 18,451,872,904.67
  5. Step 5: Solve for x
    x = 18,451,872,904.67/143,508.96
  6. Step 6: Final answer
    x = 128,576.45

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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.