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Finding the Fourth Proportional to 191,858,409.70, 287,787,614.55 and 179,009,347.30

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Solution

The fourth proportional to 191,858,409.70, 287,787,614.55 and 179,009,347.30 is: 268,514,020.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,858,409.70 : 287,787,614.55 = 179,009,347.30 : x
  2. Step 2: Convert to fraction form
    191,858,409.70/287,787,614.55 = 179,009,347.30/x
  3. Step 3: Cross multiply
    191,858,409.70x = 287,787,614.55 × 179,009,347.30
  4. Step 4: Simplify right side
    191,858,409.70x = 51,516,673,041,619,488
  5. Step 5: Solve for x
    x = 51,516,673,041,619,488/191,858,409.70
  6. Step 6: Final answer
    x = 268,514,020.95

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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.