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Finding the Fourth Proportional to 98,525.68, 147,787.09 and 66,857.11

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Solution

The fourth proportional to 98,525.68, 147,787.09 and 66,857.11 is: 100,284.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,525.68 : 147,787.09 = 66,857.11 : x
  2. Step 2: Convert to fraction form
    98,525.68/147,787.09 = 66,857.11/x
  3. Step 3: Cross multiply
    98,525.68x = 147,787.09 × 66,857.11
  4. Step 4: Simplify right side
    98,525.68x = 9,880,617,732.71
  5. Step 5: Solve for x
    x = 9,880,617,732.71/98,525.68
  6. Step 6: Final answer
    x = 100,284.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.