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Finding the Fourth Proportional to 152,361.80, 210,278.08 and 91,967.12

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Solution

The fourth proportional to 152,361.80, 210,278.08 and 91,967.12 is: 126,925.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,361.80 : 210,278.08 = 91,967.12 : x
  2. Step 2: Convert to fraction form
    152,361.80/210,278.08 = 91,967.12/x
  3. Step 3: Cross multiply
    152,361.80x = 210,278.08 × 91,967.12
  4. Step 4: Simplify right side
    152,361.80x = 19,338,669,416.73
  5. Step 5: Solve for x
    x = 19,338,669,416.73/152,361.80
  6. Step 6: Final answer
    x = 126,925.97

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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.