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Finding the Fourth Proportional to 228,602.97, 315,403.85 and 147,902.67

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Solution

The fourth proportional to 228,602.97, 315,403.85 and 147,902.67 is: 204,061.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,602.97 : 315,403.85 = 147,902.67 : x
  2. Step 2: Convert to fraction form
    228,602.97/315,403.85 = 147,902.67/x
  3. Step 3: Cross multiply
    228,602.97x = 315,403.85 × 147,902.67
  4. Step 4: Simplify right side
    228,602.97x = 46,649,070,803.77
  5. Step 5: Solve for x
    x = 46,649,070,803.77/228,602.97
  6. Step 6: Final answer
    x = 204,061.53

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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.