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Finding the Fourth Proportional to 325,393.62, 487,976.04 and 97,621.32

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Solution

The fourth proportional to 325,393.62, 487,976.04 and 97,621.32 is: 146,397.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,393.62 : 487,976.04 = 97,621.32 : x
  2. Step 2: Convert to fraction form
    325,393.62/487,976.04 = 97,621.32/x
  3. Step 3: Cross multiply
    325,393.62x = 487,976.04 × 97,621.32
  4. Step 4: Simplify right side
    325,393.62x = 47,636,865,153.17
  5. Step 5: Solve for x
    x = 47,636,865,153.17/325,393.62
  6. Step 6: Final answer
    x = 146,397.66

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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.