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Finding the Fourth Proportional to 143,695.95, 198,285.51 and 88,496.54

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Solution

The fourth proportional to 143,695.95, 198,285.51 and 88,496.54 is: 122,116.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,695.95 : 198,285.51 = 88,496.54 : x
  2. Step 2: Convert to fraction form
    143,695.95/198,285.51 = 88,496.54/x
  3. Step 3: Cross multiply
    143,695.95x = 198,285.51 × 88,496.54
  4. Step 4: Simplify right side
    143,695.95x = 17,547,580,575.71
  5. Step 5: Solve for x
    x = 17,547,580,575.71/143,695.95
  6. Step 6: Final answer
    x = 122,116.04

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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.