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Finding the Fourth Proportional to 55,088,412.28, 75,978,976.53 and 34,168,714.78

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Solution

The fourth proportional to 55,088,412.28, 75,978,976.53 and 34,168,714.78 is: 47,126,135.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,088,412.28 : 75,978,976.53 = 34,168,714.78 : x
  2. Step 2: Convert to fraction form
    55,088,412.28/75,978,976.53 = 34,168,714.78/x
  3. Step 3: Cross multiply
    55,088,412.28x = 75,978,976.53 × 34,168,714.78
  4. Step 4: Simplify right side
    55,088,412.28x = 2,596,103,978,329,884
  5. Step 5: Solve for x
    x = 2,596,103,978,329,884/55,088,412.28
  6. Step 6: Final answer
    x = 47,126,135.44

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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.