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Finding the Fourth Proportional to 230,712.32, 346,066.30 and 72,940.76

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Solution

The fourth proportional to 230,712.32, 346,066.30 and 72,940.76 is: 109,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,712.32 : 346,066.30 = 72,940.76 : x
  2. Step 2: Convert to fraction form
    230,712.32/346,066.30 = 72,940.76/x
  3. Step 3: Cross multiply
    230,712.32x = 346,066.30 × 72,940.76
  4. Step 4: Simplify right side
    230,712.32x = 25,242,338,932.39
  5. Step 5: Solve for x
    x = 25,242,338,932.39/230,712.32
  6. Step 6: Final answer
    x = 109,410.45

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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.