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Finding the Fourth Proportional to 73,297.70, 109,946.55 and 72,001.70

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Solution

The fourth proportional to 73,297.70, 109,946.55 and 72,001.70 is: 108,002.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,297.70 : 109,946.55 = 72,001.70 : x
  2. Step 2: Convert to fraction form
    73,297.70/109,946.55 = 72,001.70/x
  3. Step 3: Cross multiply
    73,297.70x = 109,946.55 × 72,001.70
  4. Step 4: Simplify right side
    73,297.70x = 7,916,338,509.14
  5. Step 5: Solve for x
    x = 7,916,338,509.14/73,297.70
  6. Step 6: Final answer
    x = 108,002.55

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1.5x scale

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.