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Finding the Fourth Proportional to 230,686.80, 346,030.20 and 163,764.60

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Solution

The fourth proportional to 230,686.80, 346,030.20 and 163,764.60 is: 245,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,686.80 : 346,030.20 = 163,764.60 : x
  2. Step 2: Convert to fraction form
    230,686.80/346,030.20 = 163,764.60/x
  3. Step 3: Cross multiply
    230,686.80x = 346,030.20 × 163,764.60
  4. Step 4: Simplify right side
    230,686.80x = 56,667,497,290.92
  5. Step 5: Solve for x
    x = 56,667,497,290.92/230,686.80
  6. Step 6: Final answer
    x = 245,646.90

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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.