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Finding the Fourth Proportional to 238,972,407.10, 358,458,610.65 and 238,972,407.10

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Solution

The fourth proportional to 238,972,407.10, 358,458,610.65 and 238,972,407.10 is: 358,458,610.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,972,407.10 : 358,458,610.65 = 238,972,407.10 : x
  2. Step 2: Convert to fraction form
    238,972,407.10/358,458,610.65 = 238,972,407.10/x
  3. Step 3: Cross multiply
    238,972,407.10x = 358,458,610.65 × 238,972,407.10
  4. Step 4: Simplify right side
    238,972,407.10x = 85,661,717,032,752,192
  5. Step 5: Solve for x
    x = 85,661,717,032,752,192/238,972,407.10
  6. Step 6: Final answer
    x = 358,458,610.65

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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.