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Finding the Fourth Proportional to 74,062,355.20, 103,432,205.60 and 74,062,355.20

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Solution

The fourth proportional to 74,062,355.20, 103,432,205.60 and 74,062,355.20 is: 103,432,205.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,062,355.20 : 103,432,205.60 = 74,062,355.20 : x
  2. Step 2: Convert to fraction form
    74,062,355.20/103,432,205.60 = 74,062,355.20/x
  3. Step 3: Cross multiply
    74,062,355.20x = 103,432,205.60 × 74,062,355.20
  4. Step 4: Simplify right side
    74,062,355.20x = 7,660,432,750,266,629
  5. Step 5: Solve for x
    x = 7,660,432,750,266,629/74,062,355.20
  6. Step 6: Final answer
    x = 103,432,205.60

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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.