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Finding the Fourth Proportional to 68,620,641.70, 103,010,678.70 and 41,357,718.40

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Solution

The fourth proportional to 68,620,641.70, 103,010,678.70 and 41,357,718.40 is: 62,084,622.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,620,641.70 : 103,010,678.70 = 41,357,718.40 : x
  2. Step 2: Convert to fraction form
    68,620,641.70/103,010,678.70 = 41,357,718.40/x
  3. Step 3: Cross multiply
    68,620,641.70x = 103,010,678.70 × 41,357,718.40
  4. Step 4: Simplify right side
    68,620,641.70x = 4,260,286,641,867,478
  5. Step 5: Solve for x
    x = 4,260,286,641,867,478/68,620,641.70
  6. Step 6: Final answer
    x = 62,084,622.59

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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.