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Finding the Fourth Proportional to 335,235.84, 502,521.60 and 157,424.56

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Solution

The fourth proportional to 335,235.84, 502,521.60 and 157,424.56 is: 235,980.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,235.84 : 502,521.60 = 157,424.56 : x
  2. Step 2: Convert to fraction form
    335,235.84/502,521.60 = 157,424.56/x
  3. Step 3: Cross multiply
    335,235.84x = 502,521.60 × 157,424.56
  4. Step 4: Simplify right side
    335,235.84x = 79,109,241,770.50
  5. Step 5: Solve for x
    x = 79,109,241,770.50/335,235.84
  6. Step 6: Final answer
    x = 235,980.86

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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.