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Finding the Fourth Proportional to 160,561.42, 221,571.98 and 88,939.93

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Solution

The fourth proportional to 160,561.42, 221,571.98 and 88,939.93 is: 122,735.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,561.42 : 221,571.98 = 88,939.93 : x
  2. Step 2: Convert to fraction form
    160,561.42/221,571.98 = 88,939.93/x
  3. Step 3: Cross multiply
    160,561.42x = 221,571.98 × 88,939.93
  4. Step 4: Simplify right side
    160,561.42x = 19,706,596,391.16
  5. Step 5: Solve for x
    x = 19,706,596,391.16/160,561.42
  6. Step 6: Final answer
    x = 122,735.56

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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.