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Finding the Fourth Proportional to 265,900.80, 399,045.60 and 177,124.80

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Solution

The fourth proportional to 265,900.80, 399,045.60 and 177,124.80 is: 265,816.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,900.80 : 399,045.60 = 177,124.80 : x
  2. Step 2: Convert to fraction form
    265,900.80/399,045.60 = 177,124.80/x
  3. Step 3: Cross multiply
    265,900.80x = 399,045.60 × 177,124.80
  4. Step 4: Simplify right side
    265,900.80x = 70,680,872,090.88
  5. Step 5: Solve for x
    x = 70,680,872,090.88/265,900.80
  6. Step 6: Final answer
    x = 265,816.70

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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.