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Finding the Fourth Proportional to 269,636,861.61, 404,097,737.46 and 138,473,839.03

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Solution

The fourth proportional to 269,636,861.61, 404,097,737.46 and 138,473,839.03 is: 207,527,133.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,636,861.61 : 404,097,737.46 = 138,473,839.03 : x
  2. Step 2: Convert to fraction form
    269,636,861.61/404,097,737.46 = 138,473,839.03/x
  3. Step 3: Cross multiply
    269,636,861.61x = 404,097,737.46 × 138,473,839.03
  4. Step 4: Simplify right side
    269,636,861.61x = 55,956,965,050,095,696
  5. Step 5: Solve for x
    x = 55,956,965,050,095,696/269,636,861.61
  6. Step 6: Final answer
    x = 207,527,133.77

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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.