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Finding the Fourth Proportional to 228,596.50, 315,390.27 and 148,085.74

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Solution

The fourth proportional to 228,596.50, 315,390.27 and 148,085.74 is: 204,311.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,596.50 : 315,390.27 = 148,085.74 : x
  2. Step 2: Convert to fraction form
    228,596.50/315,390.27 = 148,085.74/x
  3. Step 3: Cross multiply
    228,596.50x = 315,390.27 × 148,085.74
  4. Step 4: Simplify right side
    228,596.50x = 46,704,801,521.75
  5. Step 5: Solve for x
    x = 46,704,801,521.75/228,596.50
  6. Step 6: Final answer
    x = 204,311.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.