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Finding the Fourth Proportional to 489,065.64, 733,603.62 and 134,079.72

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Solution

The fourth proportional to 489,065.64, 733,603.62 and 134,079.72 is: 201,120.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,065.64 : 733,603.62 = 134,079.72 : x
  2. Step 2: Convert to fraction form
    489,065.64/733,603.62 = 134,079.72/x
  3. Step 3: Cross multiply
    489,065.64x = 733,603.62 × 134,079.72
  4. Step 4: Simplify right side
    489,065.64x = 98,361,367,960.59
  5. Step 5: Solve for x
    x = 98,361,367,960.59/489,065.64
  6. Step 6: Final answer
    x = 201,120.99

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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.