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Finding the Fourth Proportional to 92,969,491.80, 139,454,237.70 and 87,300,787.80

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Solution

The fourth proportional to 92,969,491.80, 139,454,237.70 and 87,300,787.80 is: 130,951,181.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,969,491.80 : 139,454,237.70 = 87,300,787.80 : x
  2. Step 2: Convert to fraction form
    92,969,491.80/139,454,237.70 = 87,300,787.80/x
  3. Step 3: Cross multiply
    92,969,491.80x = 139,454,237.70 × 87,300,787.80
  4. Step 4: Simplify right side
    92,969,491.80x = 12,174,464,813,258,458
  5. Step 5: Solve for x
    x = 12,174,464,813,258,458/92,969,491.80
  6. Step 6: Final answer
    x = 130,951,181.70

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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.