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Finding the Fourth Proportional to 354,537, 531,810.13 and 117,879.68

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Solution

The fourth proportional to 354,537, 531,810.13 and 117,879.68 is: 176,821.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,537 : 531,810.13 = 117,879.68 : x
  2. Step 2: Convert to fraction form
    354,537/531,810.13 = 117,879.68/x
  3. Step 3: Cross multiply
    354,537x = 531,810.13 × 117,879.68
  4. Step 4: Simplify right side
    354,537x = 62,689,608,036.83
  5. Step 5: Solve for x
    x = 62,689,608,036.83/354,537
  6. Step 6: Final answer
    x = 176,821.06

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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.