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Finding the Fourth Proportional to 366,053.80, 548,643.30 and 188,469.40

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Solution

The fourth proportional to 366,053.80, 548,643.30 and 188,469.40 is: 282,478.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,053.80 : 548,643.30 = 188,469.40 : x
  2. Step 2: Convert to fraction form
    366,053.80/548,643.30 = 188,469.40/x
  3. Step 3: Cross multiply
    366,053.80x = 548,643.30 × 188,469.40
  4. Step 4: Simplify right side
    366,053.80x = 103,402,473,565.02
  5. Step 5: Solve for x
    x = 103,402,473,565.02/366,053.80
  6. Step 6: Final answer
    x = 282,478.90

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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.