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Finding the Fourth Proportional to 150,643.64, 225,690.06 and 70,534.64

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Solution

The fourth proportional to 150,643.64, 225,690.06 and 70,534.64 is: 105,673.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,643.64 : 225,690.06 = 70,534.64 : x
  2. Step 2: Convert to fraction form
    150,643.64/225,690.06 = 70,534.64/x
  3. Step 3: Cross multiply
    150,643.64x = 225,690.06 × 70,534.64
  4. Step 4: Simplify right side
    150,643.64x = 15,918,967,133.68
  5. Step 5: Solve for x
    x = 15,918,967,133.68/150,643.64
  6. Step 6: Final answer
    x = 105,673.01

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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.