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Finding the Fourth Proportional to 171,068.81, 256,674.98 and 76,233.66

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Solution

The fourth proportional to 171,068.81, 256,674.98 and 76,233.66 is: 114,382.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,068.81 : 256,674.98 = 76,233.66 : x
  2. Step 2: Convert to fraction form
    171,068.81/256,674.98 = 76,233.66/x
  3. Step 3: Cross multiply
    171,068.81x = 256,674.98 × 76,233.66
  4. Step 4: Simplify right side
    171,068.81x = 19,567,271,955.07
  5. Step 5: Solve for x
    x = 19,567,271,955.07/171,068.81
  6. Step 6: Final answer
    x = 114,382.46

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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.