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Finding the Fourth Proportional to 441,533.95, 662,307 and 125,990.76

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Solution

The fourth proportional to 441,533.95, 662,307 and 125,990.76 is: 188,987.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,533.95 : 662,307 = 125,990.76 : x
  2. Step 2: Convert to fraction form
    441,533.95/662,307 = 125,990.76/x
  3. Step 3: Cross multiply
    441,533.95x = 662,307 × 125,990.76
  4. Step 4: Simplify right side
    441,533.95x = 83,444,562,283.32
  5. Step 5: Solve for x
    x = 83,444,562,283.32/441,533.95
  6. Step 6: Final answer
    x = 188,987.87

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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.