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Finding the Fourth Proportional to 170,403.66, 235,197.12 and 105,921.54

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Solution

The fourth proportional to 170,403.66, 235,197.12 and 105,921.54 is: 146,196.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,403.66 : 235,197.12 = 105,921.54 : x
  2. Step 2: Convert to fraction form
    170,403.66/235,197.12 = 105,921.54/x
  3. Step 3: Cross multiply
    170,403.66x = 235,197.12 × 105,921.54
  4. Step 4: Simplify right side
    170,403.66x = 24,912,441,153.96
  5. Step 5: Solve for x
    x = 24,912,441,153.96/170,403.66
  6. Step 6: Final answer
    x = 146,196.63

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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.