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Finding the Fourth Proportional to 111,652.16, 153,974.40 and 73,344.12

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Solution

The fourth proportional to 111,652.16, 153,974.40 and 73,344.12 is: 101,145.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,652.16 : 153,974.40 = 73,344.12 : x
  2. Step 2: Convert to fraction form
    111,652.16/153,974.40 = 73,344.12/x
  3. Step 3: Cross multiply
    111,652.16x = 153,974.40 × 73,344.12
  4. Step 4: Simplify right side
    111,652.16x = 11,293,116,870.53
  5. Step 5: Solve for x
    x = 11,293,116,870.53/111,652.16
  6. Step 6: Final answer
    x = 101,145.53

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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.