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Finding the Fourth Proportional to 92,620.70, 130,018.90 and 92,620.70

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Solution

The fourth proportional to 92,620.70, 130,018.90 and 92,620.70 is: 130,018.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,620.70 : 130,018.90 = 92,620.70 : x
  2. Step 2: Convert to fraction form
    92,620.70/130,018.90 = 92,620.70/x
  3. Step 3: Cross multiply
    92,620.70x = 130,018.90 × 92,620.70
  4. Step 4: Simplify right side
    92,620.70x = 12,042,441,531.23
  5. Step 5: Solve for x
    x = 12,042,441,531.23/92,620.70
  6. Step 6: Final answer
    x = 130,018.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.