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Finding the Fourth Proportional to 169,485,786.30, 254,228,679.45 and 56,018,394.30

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Solution

The fourth proportional to 169,485,786.30, 254,228,679.45 and 56,018,394.30 is: 84,027,591.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,485,786.30 : 254,228,679.45 = 56,018,394.30 : x
  2. Step 2: Convert to fraction form
    169,485,786.30/254,228,679.45 = 56,018,394.30/x
  3. Step 3: Cross multiply
    169,485,786.30x = 254,228,679.45 × 56,018,394.30
  4. Step 4: Simplify right side
    169,485,786.30x = 14,241,482,407,798,406
  5. Step 5: Solve for x
    x = 14,241,482,407,798,406/169,485,786.30
  6. Step 6: Final answer
    x = 84,027,591.45

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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.