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Finding the Fourth Proportional to 82,356.84, 122,932.53 and 70,744.68

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Solution

The fourth proportional to 82,356.84, 122,932.53 and 70,744.68 is: 105,599.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,356.84 : 122,932.53 = 70,744.68 : x
  2. Step 2: Convert to fraction form
    82,356.84/122,932.53 = 70,744.68/x
  3. Step 3: Cross multiply
    82,356.84x = 122,932.53 × 70,744.68
  4. Step 4: Simplify right side
    82,356.84x = 8,696,822,496.44
  5. Step 5: Solve for x
    x = 8,696,822,496.44/82,356.84
  6. Step 6: Final answer
    x = 105,599.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.