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Finding the Fourth Proportional to 175,641.98, 263,463.60 and 42,521.98

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Solution

The fourth proportional to 175,641.98, 263,463.60 and 42,521.98 is: 63,783.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,641.98 : 263,463.60 = 42,521.98 : x
  2. Step 2: Convert to fraction form
    175,641.98/263,463.60 = 42,521.98/x
  3. Step 3: Cross multiply
    175,641.98x = 263,463.60 × 42,521.98
  4. Step 4: Simplify right side
    175,641.98x = 11,202,993,929.93
  5. Step 5: Solve for x
    x = 11,202,993,929.93/175,641.98
  6. Step 6: Final answer
    x = 63,783.12

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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.