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Finding the Fourth Proportional to 209,953,807.70, 314,930,711.55 and 185,294,945.30

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Solution

The fourth proportional to 209,953,807.70, 314,930,711.55 and 185,294,945.30 is: 277,942,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,953,807.70 : 314,930,711.55 = 185,294,945.30 : x
  2. Step 2: Convert to fraction form
    209,953,807.70/314,930,711.55 = 185,294,945.30/x
  3. Step 3: Cross multiply
    209,953,807.70x = 314,930,711.55 × 185,294,945.30
  4. Step 4: Simplify right side
    209,953,807.70x = 58,355,068,969,947,336
  5. Step 5: Solve for x
    x = 58,355,068,969,947,336/209,953,807.70
  6. Step 6: Final answer
    x = 277,942,417.95

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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.