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Finding the Fourth Proportional to 228,825.80, 343,238.70 and 60,345.80

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Solution

The fourth proportional to 228,825.80, 343,238.70 and 60,345.80 is: 90,518.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,825.80 : 343,238.70 = 60,345.80 : x
  2. Step 2: Convert to fraction form
    228,825.80/343,238.70 = 60,345.80/x
  3. Step 3: Cross multiply
    228,825.80x = 343,238.70 × 60,345.80
  4. Step 4: Simplify right side
    228,825.80x = 20,713,013,942.46
  5. Step 5: Solve for x
    x = 20,713,013,942.46/228,825.80
  6. Step 6: Final answer
    x = 90,518.70

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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.