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Finding the Fourth Proportional to 74,368,470.20, 111,552,705.30 and 74,368,470.20

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Solution

The fourth proportional to 74,368,470.20, 111,552,705.30 and 74,368,470.20 is: 111,552,705.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,368,470.20 : 111,552,705.30 = 74,368,470.20 : x
  2. Step 2: Convert to fraction form
    74,368,470.20/111,552,705.30 = 74,368,470.20/x
  3. Step 3: Cross multiply
    74,368,470.20x = 111,552,705.30 × 74,368,470.20
  4. Step 4: Simplify right side
    74,368,470.20x = 8,296,004,039,832,432
  5. Step 5: Solve for x
    x = 8,296,004,039,832,432/74,368,470.20
  6. Step 6: Final answer
    x = 111,552,705.30

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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.