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Finding the Fourth Proportional to 281,005.34, 421,560.02 and 88,928.14

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Solution

The fourth proportional to 281,005.34, 421,560.02 and 88,928.14 is: 133,408.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,005.34 : 421,560.02 = 88,928.14 : x
  2. Step 2: Convert to fraction form
    281,005.34/421,560.02 = 88,928.14/x
  3. Step 3: Cross multiply
    281,005.34x = 421,560.02 × 88,928.14
  4. Step 4: Simplify right side
    281,005.34x = 37,488,548,476.96
  5. Step 5: Solve for x
    x = 37,488,548,476.96/281,005.34
  6. Step 6: Final answer
    x = 133,408.67

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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.