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Finding the Fourth Proportional to 92,482.20, 127,629.36 and 58,478.40

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Solution

The fourth proportional to 92,482.20, 127,629.36 and 58,478.40 is: 80,702.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,482.20 : 127,629.36 = 58,478.40 : x
  2. Step 2: Convert to fraction form
    92,482.20/127,629.36 = 58,478.40/x
  3. Step 3: Cross multiply
    92,482.20x = 127,629.36 × 58,478.40
  4. Step 4: Simplify right side
    92,482.20x = 7,463,560,765.82
  5. Step 5: Solve for x
    x = 7,463,560,765.82/92,482.20
  6. Step 6: Final answer
    x = 80,702.67

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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.