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Finding the Fourth Proportional to 102,992.58, 154,455.84 and 53,066.16

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Solution

The fourth proportional to 102,992.58, 154,455.84 and 53,066.16 is: 79,582.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,992.58 : 154,455.84 = 53,066.16 : x
  2. Step 2: Convert to fraction form
    102,992.58/154,455.84 = 53,066.16/x
  3. Step 3: Cross multiply
    102,992.58x = 154,455.84 × 53,066.16
  4. Step 4: Simplify right side
    102,992.58x = 8,196,378,318.37
  5. Step 5: Solve for x
    x = 8,196,378,318.37/102,992.58
  6. Step 6: Final answer
    x = 79,582.22

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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.