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Finding the Fourth Proportional to 388,002.66, 582,091.56 and 118,154.94

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Solution

The fourth proportional to 388,002.66, 582,091.56 and 118,154.94 is: 177,259.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,002.66 : 582,091.56 = 118,154.94 : x
  2. Step 2: Convert to fraction form
    388,002.66/582,091.56 = 118,154.94/x
  3. Step 3: Cross multiply
    388,002.66x = 582,091.56 × 118,154.94
  4. Step 4: Simplify right side
    388,002.66x = 68,776,993,346.31
  5. Step 5: Solve for x
    x = 68,776,993,346.31/388,002.66
  6. Step 6: Final answer
    x = 177,259.08

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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.