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Finding the Fourth Proportional to 209,953,807.80, 314,930,711.70 and 95,162,551.80

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Solution

The fourth proportional to 209,953,807.80, 314,930,711.70 and 95,162,551.80 is: 142,743,827.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,953,807.80 : 314,930,711.70 = 95,162,551.80 : x
  2. Step 2: Convert to fraction form
    209,953,807.80/314,930,711.70 = 95,162,551.80/x
  3. Step 3: Cross multiply
    209,953,807.80x = 314,930,711.70 × 95,162,551.80
  4. Step 4: Simplify right side
    209,953,807.80x = 29,969,610,165,562,112
  5. Step 5: Solve for x
    x = 29,969,610,165,562,112/209,953,807.80
  6. Step 6: Final answer
    x = 142,743,827.70

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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.