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Finding the Fourth Proportional to 68,992,010.40, 103,473,500.40 and 34,881,290.40

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Solution

The fourth proportional to 68,992,010.40, 103,473,500.40 and 34,881,290.40 is: 52,314,596.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,992,010.40 : 103,473,500.40 = 34,881,290.40 : x
  2. Step 2: Convert to fraction form
    68,992,010.40/103,473,500.40 = 34,881,290.40/x
  3. Step 3: Cross multiply
    68,992,010.40x = 103,473,500.40 × 34,881,290.40
  4. Step 4: Simplify right side
    68,992,010.40x = 3,609,289,216,156,916
  5. Step 5: Solve for x
    x = 3,609,289,216,156,916/68,992,010.40
  6. Step 6: Final answer
    x = 52,314,596.94

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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.