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Finding the Fourth Proportional to 356,924.66, 535,595.99 and 143,659.35

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Solution

The fourth proportional to 356,924.66, 535,595.99 and 143,659.35 is: 215,573.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,924.66 : 535,595.99 = 143,659.35 : x
  2. Step 2: Convert to fraction form
    356,924.66/535,595.99 = 143,659.35/x
  3. Step 3: Cross multiply
    356,924.66x = 535,595.99 × 143,659.35
  4. Step 4: Simplify right side
    356,924.66x = 76,943,371,067.71
  5. Step 5: Solve for x
    x = 76,943,371,067.71/356,924.66
  6. Step 6: Final answer
    x = 215,573.15

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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.