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Finding the Fourth Proportional to 262,585.80, 393,975.90 and 104,927.40

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Solution

The fourth proportional to 262,585.80, 393,975.90 and 104,927.40 is: 157,429.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,585.80 : 393,975.90 = 104,927.40 : x
  2. Step 2: Convert to fraction form
    262,585.80/393,975.90 = 104,927.40/x
  3. Step 3: Cross multiply
    262,585.80x = 393,975.90 × 104,927.40
  4. Step 4: Simplify right side
    262,585.80x = 41,338,866,849.66
  5. Step 5: Solve for x
    x = 41,338,866,849.66/262,585.80
  6. Step 6: Final answer
    x = 157,429.94

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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.