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Finding the Fourth Proportional to 368,672.36, 553,008.54 and 210,790.10

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Solution

The fourth proportional to 368,672.36, 553,008.54 and 210,790.10 is: 316,185.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,672.36 : 553,008.54 = 210,790.10 : x
  2. Step 2: Convert to fraction form
    368,672.36/553,008.54 = 210,790.10/x
  3. Step 3: Cross multiply
    368,672.36x = 553,008.54 × 210,790.10
  4. Step 4: Simplify right side
    368,672.36x = 116,568,722,155.44
  5. Step 5: Solve for x
    x = 116,568,722,155.44/368,672.36
  6. Step 6: Final answer
    x = 316,185.14

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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.