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Finding the Fourth Proportional to 543,053.04, 814,688.80 and 188,059.20

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Solution

The fourth proportional to 543,053.04, 814,688.80 and 188,059.20 is: 282,126.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,053.04 : 814,688.80 = 188,059.20 : x
  2. Step 2: Convert to fraction form
    543,053.04/814,688.80 = 188,059.20/x
  3. Step 3: Cross multiply
    543,053.04x = 814,688.80 × 188,059.20
  4. Step 4: Simplify right side
    543,053.04x = 153,209,723,976.96
  5. Step 5: Solve for x
    x = 153,209,723,976.96/543,053.04
  6. Step 6: Final answer
    x = 282,126.63

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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.