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Finding the Fourth Proportional to 335,035.95, 502,420.88 and 121,687.46

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Solution

The fourth proportional to 335,035.95, 502,420.88 and 121,687.46 is: 182,482.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,035.95 : 502,420.88 = 121,687.46 : x
  2. Step 2: Convert to fraction form
    335,035.95/502,420.88 = 121,687.46/x
  3. Step 3: Cross multiply
    335,035.95x = 502,420.88 × 121,687.46
  4. Step 4: Simplify right side
    335,035.95x = 61,138,322,555.98
  5. Step 5: Solve for x
    x = 61,138,322,555.98/335,035.95
  6. Step 6: Final answer
    x = 182,482.87

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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.