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Finding the Fourth Proportional to 219,151.80, 328,727.70 and 101,053.80

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Solution

The fourth proportional to 219,151.80, 328,727.70 and 101,053.80 is: 151,580.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,151.80 : 328,727.70 = 101,053.80 : x
  2. Step 2: Convert to fraction form
    219,151.80/328,727.70 = 101,053.80/x
  3. Step 3: Cross multiply
    219,151.80x = 328,727.70 × 101,053.80
  4. Step 4: Simplify right side
    219,151.80x = 33,219,183,250.26
  5. Step 5: Solve for x
    x = 33,219,183,250.26/219,151.80
  6. Step 6: Final answer
    x = 151,580.70

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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.