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Finding the Fourth Proportional to 292,766,679.87, 404,015,626.94 and 158,804,260.79

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Solution

The fourth proportional to 292,766,679.87, 404,015,626.94 and 158,804,260.79 is: 219,148,582.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,766,679.87 : 404,015,626.94 = 158,804,260.79 : x
  2. Step 2: Convert to fraction form
    292,766,679.87/404,015,626.94 = 158,804,260.79/x
  3. Step 3: Cross multiply
    292,766,679.87x = 404,015,626.94 × 158,804,260.79
  4. Step 4: Simplify right side
    292,766,679.87x = 64,159,402,981,001,008
  5. Step 5: Solve for x
    x = 64,159,402,981,001,008/292,766,679.87
  6. Step 6: Final answer
    x = 219,148,582.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.