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Finding the Fourth Proportional to 79,238,947.30, 118,858,420.95 and 79,238,947.30

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Solution

The fourth proportional to 79,238,947.30, 118,858,420.95 and 79,238,947.30 is: 118,858,420.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,238,947.30 : 118,858,420.95 = 79,238,947.30 : x
  2. Step 2: Convert to fraction form
    79,238,947.30/118,858,420.95 = 79,238,947.30/x
  3. Step 3: Cross multiply
    79,238,947.30x = 118,858,420.95 × 79,238,947.30
  4. Step 4: Simplify right side
    79,238,947.30x = 9,418,216,153,818,266
  5. Step 5: Solve for x
    x = 9,418,216,153,818,266/79,238,947.30
  6. Step 6: Final answer
    x = 118,858,420.95

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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.