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Finding the Fourth Proportional to 107,215.62, 147,860.74 and 66,933.12

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Solution

The fourth proportional to 107,215.62, 147,860.74 and 66,933.12 is: 92,307.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,215.62 : 147,860.74 = 66,933.12 : x
  2. Step 2: Convert to fraction form
    107,215.62/147,860.74 = 66,933.12/x
  3. Step 3: Cross multiply
    107,215.62x = 147,860.74 × 66,933.12
  4. Step 4: Simplify right side
    107,215.62x = 9,896,780,653.71
  5. Step 5: Solve for x
    x = 9,896,780,653.71/107,215.62
  6. Step 6: Final answer
    x = 92,307.27

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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.