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Finding the Fourth Proportional to 114,489.84, 158,005.68 and 63,519

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Solution

The fourth proportional to 114,489.84, 158,005.68 and 63,519 is: 87,661.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,489.84 : 158,005.68 = 63,519 : x
  2. Step 2: Convert to fraction form
    114,489.84/158,005.68 = 63,519/x
  3. Step 3: Cross multiply
    114,489.84x = 158,005.68 × 63,519
  4. Step 4: Simplify right side
    114,489.84x = 10,036,362,787.92
  5. Step 5: Solve for x
    x = 10,036,362,787.92/114,489.84
  6. Step 6: Final answer
    x = 87,661.60

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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.