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Finding the Fourth Proportional to 115,955.84, 160,019.42 and 67,586.39

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Solution

The fourth proportional to 115,955.84, 160,019.42 and 67,586.39 is: 93,269.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,955.84 : 160,019.42 = 67,586.39 : x
  2. Step 2: Convert to fraction form
    115,955.84/160,019.42 = 67,586.39/x
  3. Step 3: Cross multiply
    115,955.84x = 160,019.42 × 67,586.39
  4. Step 4: Simplify right side
    115,955.84x = 10,815,134,927.69
  5. Step 5: Solve for x
    x = 10,815,134,927.69/115,955.84
  6. Step 6: Final answer
    x = 93,269.43

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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.