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Finding the Fourth Proportional to 358,046.64, 536,585.76 and 136,309.68

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Solution

The fourth proportional to 358,046.64, 536,585.76 and 136,309.68 is: 204,280.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,046.64 : 536,585.76 = 136,309.68 : x
  2. Step 2: Convert to fraction form
    358,046.64/536,585.76 = 136,309.68/x
  3. Step 3: Cross multiply
    358,046.64x = 536,585.76 × 136,309.68
  4. Step 4: Simplify right side
    358,046.64x = 73,141,833,238.16
  5. Step 5: Solve for x
    x = 73,141,833,238.16/358,046.64
  6. Step 6: Final answer
    x = 204,280.18

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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.