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Finding the Fourth Proportional to 356,934.96, 535,231.59 and 207,216.58

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Solution

The fourth proportional to 356,934.96, 535,231.59 and 207,216.58 is: 310,725.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,934.96 : 535,231.59 = 207,216.58 : x
  2. Step 2: Convert to fraction form
    356,934.96/535,231.59 = 207,216.58/x
  3. Step 3: Cross multiply
    356,934.96x = 535,231.59 × 207,216.58
  4. Step 4: Simplify right side
    356,934.96x = 110,908,859,587.76
  5. Step 5: Solve for x
    x = 110,908,859,587.76/356,934.96
  6. Step 6: Final answer
    x = 310,725.68

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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.