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Finding the Fourth Proportional to 353,053.32, 487,216.84 and 191,908.74

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Solution

The fourth proportional to 353,053.32, 487,216.84 and 191,908.74 is: 264,835.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,053.32 : 487,216.84 = 191,908.74 : x
  2. Step 2: Convert to fraction form
    353,053.32/487,216.84 = 191,908.74/x
  3. Step 3: Cross multiply
    353,053.32x = 487,216.84 × 191,908.74
  4. Step 4: Simplify right side
    353,053.32x = 93,501,169,871.18
  5. Step 5: Solve for x
    x = 93,501,169,871.18/353,053.32
  6. Step 6: Final answer
    x = 264,835.83

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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.