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Finding the Fourth Proportional to 292,766,680.88, 404,015,628.34 and 158,804,261.78

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Solution

The fourth proportional to 292,766,680.88, 404,015,628.34 and 158,804,261.78 is: 219,148,584.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,766,680.88 : 404,015,628.34 = 158,804,261.78 : x
  2. Step 2: Convert to fraction form
    292,766,680.88/404,015,628.34 = 158,804,261.78/x
  3. Step 3: Cross multiply
    292,766,680.88x = 404,015,628.34 × 158,804,261.78
  4. Step 4: Simplify right side
    292,766,680.88x = 64,159,403,605,322,520
  5. Step 5: Solve for x
    x = 64,159,403,605,322,520/292,766,680.88
  6. Step 6: Final answer
    x = 219,148,584.16

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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.