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Finding the Fourth Proportional to 259,670.74, 389,506.12 and 62,678.74

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Solution

The fourth proportional to 259,670.74, 389,506.12 and 62,678.74 is: 94,018.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,670.74 : 389,506.12 = 62,678.74 : x
  2. Step 2: Convert to fraction form
    259,670.74/389,506.12 = 62,678.74/x
  3. Step 3: Cross multiply
    259,670.74x = 389,506.12 × 62,678.74
  4. Step 4: Simplify right side
    259,670.74x = 24,413,752,823.89
  5. Step 5: Solve for x
    x = 24,413,752,823.89/259,670.74
  6. Step 6: Final answer
    x = 94,018.11

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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.