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Finding the Fourth Proportional to 160,666.50, 221,714.85 and 88,067.82

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Solution

The fourth proportional to 160,666.50, 221,714.85 and 88,067.82 is: 121,530.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,666.50 : 221,714.85 = 88,067.82 : x
  2. Step 2: Convert to fraction form
    160,666.50/221,714.85 = 88,067.82/x
  3. Step 3: Cross multiply
    160,666.50x = 221,714.85 × 88,067.82
  4. Step 4: Simplify right side
    160,666.50x = 19,525,943,501.13
  5. Step 5: Solve for x
    x = 19,525,943,501.13/160,666.50
  6. Step 6: Final answer
    x = 121,530.89

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1.5x scale

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.