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Finding the Fourth Proportional to 82,969,390.70, 124,214,937.60 and 82,969,390.70

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Solution

The fourth proportional to 82,969,390.70, 124,214,937.60 and 82,969,390.70 is: 124,214,937.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,969,390.70 : 124,214,937.60 = 82,969,390.70 : x
  2. Step 2: Convert to fraction form
    82,969,390.70/124,214,937.60 = 82,969,390.70/x
  3. Step 3: Cross multiply
    82,969,390.70x = 124,214,937.60 × 82,969,390.70
  4. Step 4: Simplify right side
    82,969,390.70x = 10,306,037,688,510,520
  5. Step 5: Solve for x
    x = 10,306,037,688,510,520/82,969,390.70
  6. Step 6: Final answer
    x = 124,214,937.60

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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.