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Finding the Fourth Proportional to 160,658.94, 221,703.30 and 89,040.18

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Solution

The fourth proportional to 160,658.94, 221,703.30 and 89,040.18 is: 122,872.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,658.94 : 221,703.30 = 89,040.18 : x
  2. Step 2: Convert to fraction form
    160,658.94/221,703.30 = 89,040.18/x
  3. Step 3: Cross multiply
    160,658.94x = 221,703.30 × 89,040.18
  4. Step 4: Simplify right side
    160,658.94x = 19,740,501,738.59
  5. Step 5: Solve for x
    x = 19,740,501,738.59/160,658.94
  6. Step 6: Final answer
    x = 122,872.10

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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.