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Finding the Fourth Proportional to 94,786,281.70, 142,179,422.55 and 80,472,804.10

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Solution

The fourth proportional to 94,786,281.70, 142,179,422.55 and 80,472,804.10 is: 120,709,206.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,786,281.70 : 142,179,422.55 = 80,472,804.10 : x
  2. Step 2: Convert to fraction form
    94,786,281.70/142,179,422.55 = 80,472,804.10/x
  3. Step 3: Cross multiply
    94,786,281.70x = 142,179,422.55 × 80,472,804.10
  4. Step 4: Simplify right side
    94,786,281.70x = 11,441,576,817,917,272
  5. Step 5: Solve for x
    x = 11,441,576,817,917,272/94,786,281.70
  6. Step 6: Final answer
    x = 120,709,206.15

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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.