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Finding the Fourth Proportional to 265,616,178.32, 398,394,342.84 and 71,541,798.32

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Solution

The fourth proportional to 265,616,178.32, 398,394,342.84 and 71,541,798.32 is: 107,304,637.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,616,178.32 : 398,394,342.84 = 71,541,798.32 : x
  2. Step 2: Convert to fraction form
    265,616,178.32/398,394,342.84 = 71,541,798.32/x
  3. Step 3: Cross multiply
    265,616,178.32x = 398,394,342.84 × 71,541,798.32
  4. Step 4: Simplify right side
    265,616,178.32x = 28,501,847,727,288,212
  5. Step 5: Solve for x
    x = 28,501,847,727,288,212/265,616,178.32
  6. Step 6: Final answer
    x = 107,304,637.49

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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.