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Finding the Fourth Proportional to 169,978,890.30, 254,968,335.45 and 108,756,887.10

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Solution

The fourth proportional to 169,978,890.30, 254,968,335.45 and 108,756,887.10 is: 163,135,330.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,978,890.30 : 254,968,335.45 = 108,756,887.10 : x
  2. Step 2: Convert to fraction form
    169,978,890.30/254,968,335.45 = 108,756,887.10/x
  3. Step 3: Cross multiply
    169,978,890.30x = 254,968,335.45 × 108,756,887.10
  4. Step 4: Simplify right side
    169,978,890.30x = 27,729,562,472,610,576
  5. Step 5: Solve for x
    x = 27,729,562,472,610,576/169,978,890.30
  6. Step 6: Final answer
    x = 163,135,330.65

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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.