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Finding the Fourth Proportional to 491,118.81, 736,605.32 and 136,095.81

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Solution

The fourth proportional to 491,118.81, 736,605.32 and 136,095.81 is: 204,123.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,118.81 : 736,605.32 = 136,095.81 : x
  2. Step 2: Convert to fraction form
    491,118.81/736,605.32 = 136,095.81/x
  3. Step 3: Cross multiply
    491,118.81x = 736,605.32 × 136,095.81
  4. Step 4: Simplify right side
    491,118.81x = 100,248,896,995.23
  5. Step 5: Solve for x
    x = 100,248,896,995.23/491,118.81
  6. Step 6: Final answer
    x = 204,123.51

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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.