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Finding the Fourth Proportional to 111,617.84, 154,038.84 and 63,860.24

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Solution

The fourth proportional to 111,617.84, 154,038.84 and 63,860.24 is: 88,130.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,617.84 : 154,038.84 = 63,860.24 : x
  2. Step 2: Convert to fraction form
    111,617.84/154,038.84 = 63,860.24/x
  3. Step 3: Cross multiply
    111,617.84x = 154,038.84 × 63,860.24
  4. Step 4: Simplify right side
    111,617.84x = 9,836,957,291.72
  5. Step 5: Solve for x
    x = 9,836,957,291.72/111,617.84
  6. Step 6: Final answer
    x = 88,130.69

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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.