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Finding the Fourth Proportional to 101,153.65, 151,903.28 and 66,248.05

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Solution

The fourth proportional to 101,153.65, 151,903.28 and 66,248.05 is: 99,485.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,153.65 : 151,903.28 = 66,248.05 : x
  2. Step 2: Convert to fraction form
    101,153.65/151,903.28 = 66,248.05/x
  3. Step 3: Cross multiply
    101,153.65x = 151,903.28 × 66,248.05
  4. Step 4: Simplify right side
    101,153.65x = 10,063,295,757.36
  5. Step 5: Solve for x
    x = 10,063,295,757.36/101,153.65
  6. Step 6: Final answer
    x = 99,485.25

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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.