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Finding the Fourth Proportional to 111,684.48, 154,131.84 and 63,944.16

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Solution

The fourth proportional to 111,684.48, 154,131.84 and 63,944.16 is: 88,247.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,684.48 : 154,131.84 = 63,944.16 : x
  2. Step 2: Convert to fraction form
    111,684.48/154,131.84 = 63,944.16/x
  3. Step 3: Cross multiply
    111,684.48x = 154,131.84 × 63,944.16
  4. Step 4: Simplify right side
    111,684.48x = 9,855,831,038.05
  5. Step 5: Solve for x
    x = 9,855,831,038.05/111,684.48
  6. Step 6: Final answer
    x = 88,247.10

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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.