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Finding the Fourth Proportional to 110,818.66, 152,940.82 and 66,106.66

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Solution

The fourth proportional to 110,818.66, 152,940.82 and 66,106.66 is: 91,233.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,818.66 : 152,940.82 = 66,106.66 : x
  2. Step 2: Convert to fraction form
    110,818.66/152,940.82 = 66,106.66/x
  3. Step 3: Cross multiply
    110,818.66x = 152,940.82 × 66,106.66
  4. Step 4: Simplify right side
    110,818.66x = 10,110,406,787.86
  5. Step 5: Solve for x
    x = 10,110,406,787.86/110,818.66
  6. Step 6: Final answer
    x = 91,233.79

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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.