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Finding the Fourth Proportional to 153,648.81, 212,049.29 and 93,234.77

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Solution

The fourth proportional to 153,648.81, 212,049.29 and 93,234.77 is: 128,672.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,648.81 : 212,049.29 = 93,234.77 : x
  2. Step 2: Convert to fraction form
    153,648.81/212,049.29 = 93,234.77/x
  3. Step 3: Cross multiply
    153,648.81x = 212,049.29 × 93,234.77
  4. Step 4: Simplify right side
    153,648.81x = 19,770,365,255.39
  5. Step 5: Solve for x
    x = 19,770,365,255.39/153,648.81
  6. Step 6: Final answer
    x = 128,672.43

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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.