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Finding the Fourth Proportional to 159,698.98, 220,385.64 and 88,080.94

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Solution

The fourth proportional to 159,698.98, 220,385.64 and 88,080.94 is: 121,552.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,698.98 : 220,385.64 = 88,080.94 : x
  2. Step 2: Convert to fraction form
    159,698.98/220,385.64 = 88,080.94/x
  3. Step 3: Cross multiply
    159,698.98x = 220,385.64 × 88,080.94
  4. Step 4: Simplify right side
    159,698.98x = 19,411,774,333.70
  5. Step 5: Solve for x
    x = 19,411,774,333.70/159,698.98
  6. Step 6: Final answer
    x = 121,552.27

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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.