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Finding the Fourth Proportional to 117,448.65, 162,078.31 and 63,732.30

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Solution

The fourth proportional to 117,448.65, 162,078.31 and 63,732.30 is: 87,950.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,448.65 : 162,078.31 = 63,732.30 : x
  2. Step 2: Convert to fraction form
    117,448.65/162,078.31 = 63,732.30/x
  3. Step 3: Cross multiply
    117,448.65x = 162,078.31 × 63,732.30
  4. Step 4: Simplify right side
    117,448.65x = 10,329,623,476.41
  5. Step 5: Solve for x
    x = 10,329,623,476.41/117,448.65
  6. Step 6: Final answer
    x = 87,950.13

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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.