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Finding the Fourth Proportional to 110,715.72, 166,032.80 and 39,619.07

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Solution

The fourth proportional to 110,715.72, 166,032.80 and 39,619.07 is: 59,414.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,715.72 : 166,032.80 = 39,619.07 : x
  2. Step 2: Convert to fraction form
    110,715.72/166,032.80 = 39,619.07/x
  3. Step 3: Cross multiply
    110,715.72x = 166,032.80 × 39,619.07
  4. Step 4: Simplify right side
    110,715.72x = 6,578,065,125.50
  5. Step 5: Solve for x
    x = 6,578,065,125.50/110,715.72
  6. Step 6: Final answer
    x = 59,414.01

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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.