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Finding the Fourth Proportional to 342,577.16, 472,744.43 and 189,615.65

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Solution

The fourth proportional to 342,577.16, 472,744.43 and 189,615.65 is: 261,662.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,577.16 : 472,744.43 = 189,615.65 : x
  2. Step 2: Convert to fraction form
    342,577.16/472,744.43 = 189,615.65/x
  3. Step 3: Cross multiply
    342,577.16x = 472,744.43 × 189,615.65
  4. Step 4: Simplify right side
    342,577.16x = 89,639,742,612.11
  5. Step 5: Solve for x
    x = 89,639,742,612.11/342,577.16
  6. Step 6: Final answer
    x = 261,662.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.