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Finding the Fourth Proportional to 368,673.36, 553,010.04 and 210,791.10

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Solution

The fourth proportional to 368,673.36, 553,010.04 and 210,791.10 is: 316,186.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,673.36 : 553,010.04 = 210,791.10 : x
  2. Step 2: Convert to fraction form
    368,673.36/553,010.04 = 210,791.10/x
  3. Step 3: Cross multiply
    368,673.36x = 553,010.04 × 210,791.10
  4. Step 4: Simplify right side
    368,673.36x = 116,569,594,642.64
  5. Step 5: Solve for x
    x = 116,569,594,642.64/368,673.36
  6. Step 6: Final answer
    x = 316,186.65

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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.