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Finding the Fourth Proportional to 74,062,357.20, 103,432,208.40 and 74,062,357.20

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Solution

The fourth proportional to 74,062,357.20, 103,432,208.40 and 74,062,357.20 is: 103,432,208.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,062,357.20 : 103,432,208.40 = 74,062,357.20 : x
  2. Step 2: Convert to fraction form
    74,062,357.20/103,432,208.40 = 74,062,357.20/x
  3. Step 3: Cross multiply
    74,062,357.20x = 103,432,208.40 × 74,062,357.20
  4. Step 4: Simplify right side
    74,062,357.20x = 7,660,433,164,505,641
  5. Step 5: Solve for x
    x = 7,660,433,164,505,641/74,062,357.20
  6. Step 6: Final answer
    x = 103,432,208.40

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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.