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Finding the Fourth Proportional to 228,098.80, 319,863.20 and 228,098.80

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Solution

The fourth proportional to 228,098.80, 319,863.20 and 228,098.80 is: 319,863.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,098.80 : 319,863.20 = 228,098.80 : x
  2. Step 2: Convert to fraction form
    228,098.80/319,863.20 = 228,098.80/x
  3. Step 3: Cross multiply
    228,098.80x = 319,863.20 × 228,098.80
  4. Step 4: Simplify right side
    228,098.80x = 72,960,412,084.16
  5. Step 5: Solve for x
    x = 72,960,412,084.16/228,098.80
  6. Step 6: Final answer
    x = 319,863.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.