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Finding the Fourth Proportional to 208,888,891.65, 313,333,337.48 and 112,033,769.40

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Solution

The fourth proportional to 208,888,891.65, 313,333,337.48 and 112,033,769.40 is: 168,050,654.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,888,891.65 : 313,333,337.48 = 112,033,769.40 : x
  2. Step 2: Convert to fraction form
    208,888,891.65/313,333,337.48 = 112,033,769.40/x
  3. Step 3: Cross multiply
    208,888,891.65x = 313,333,337.48 × 112,033,769.40
  4. Step 4: Simplify right side
    208,888,891.65x = 35,103,914,876,006,532
  5. Step 5: Solve for x
    x = 35,103,914,876,006,532/208,888,891.65
  6. Step 6: Final answer
    x = 168,050,654.10

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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.