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Finding the Fourth Proportional to 575,172.32, 862,764 and 154,448.24

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Solution

The fourth proportional to 575,172.32, 862,764 and 154,448.24 is: 231,673.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,172.32 : 862,764 = 154,448.24 : x
  2. Step 2: Convert to fraction form
    575,172.32/862,764 = 154,448.24/x
  3. Step 3: Cross multiply
    575,172.32x = 862,764 × 154,448.24
  4. Step 4: Simplify right side
    575,172.32x = 133,252,381,335.36
  5. Step 5: Solve for x
    x = 133,252,381,335.36/575,172.32
  6. Step 6: Final answer
    x = 231,673.84

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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.