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Finding the Fourth Proportional to 109,387,427.40, 163,978,497.90 and 41,275,888.20

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Solution

The fourth proportional to 109,387,427.40, 163,978,497.90 and 41,275,888.20 is: 61,875,101.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,387,427.40 : 163,978,497.90 = 41,275,888.20 : x
  2. Step 2: Convert to fraction form
    109,387,427.40/163,978,497.90 = 41,275,888.20/x
  3. Step 3: Cross multiply
    109,387,427.40x = 163,978,497.90 × 41,275,888.20
  4. Step 4: Simplify right side
    109,387,427.40x = 6,768,358,146,524,336
  5. Step 5: Solve for x
    x = 6,768,358,146,524,336/109,387,427.40
  6. Step 6: Final answer
    x = 61,875,101.26

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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.