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Finding the Fourth Proportional to 68,992,008.40, 103,473,497.40 and 34,881,288.40

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Solution

The fourth proportional to 68,992,008.40, 103,473,497.40 and 34,881,288.40 is: 52,314,593.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,992,008.40 : 103,473,497.40 = 34,881,288.40 : x
  2. Step 2: Convert to fraction form
    68,992,008.40/103,473,497.40 = 34,881,288.40/x
  3. Step 3: Cross multiply
    68,992,008.40x = 103,473,497.40 × 34,881,288.40
  4. Step 4: Simplify right side
    68,992,008.40x = 3,609,288,904,566,050
  5. Step 5: Solve for x
    x = 3,609,288,904,566,050/68,992,008.40
  6. Step 6: Final answer
    x = 52,314,593.94

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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.