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Finding the Fourth Proportional to 110,144.84, 151,986.90 and 64,812.84

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Solution

The fourth proportional to 110,144.84, 151,986.90 and 64,812.84 is: 89,434.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,144.84 : 151,986.90 = 64,812.84 : x
  2. Step 2: Convert to fraction form
    110,144.84/151,986.90 = 64,812.84/x
  3. Step 3: Cross multiply
    110,144.84x = 151,986.90 × 64,812.84
  4. Step 4: Simplify right side
    110,144.84x = 9,850,702,631.80
  5. Step 5: Solve for x
    x = 9,850,702,631.80/110,144.84
  6. Step 6: Final answer
    x = 89,434.08

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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.