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Finding the Fourth Proportional to 292,655,659.82, 438,983,679.27 and 74,322,375.98

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Solution

The fourth proportional to 292,655,659.82, 438,983,679.27 and 74,322,375.98 is: 111,483,612.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,655,659.82 : 438,983,679.27 = 74,322,375.98 : x
  2. Step 2: Convert to fraction form
    292,655,659.82/438,983,679.27 = 74,322,375.98/x
  3. Step 3: Cross multiply
    292,655,659.82x = 438,983,679.27 × 74,322,375.98
  4. Step 4: Simplify right side
    292,655,659.82x = 32,626,310,057,593,748
  5. Step 5: Solve for x
    x = 32,626,310,057,593,748/292,655,659.82
  6. Step 6: Final answer
    x = 111,483,612.10

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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.