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Finding the Fourth Proportional to 124,633.70, 186,911.34 and 40,374.32

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Solution

The fourth proportional to 124,633.70, 186,911.34 and 40,374.32 is: 60,548.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,633.70 : 186,911.34 = 40,374.32 : x
  2. Step 2: Convert to fraction form
    124,633.70/186,911.34 = 40,374.32/x
  3. Step 3: Cross multiply
    124,633.70x = 186,911.34 × 40,374.32
  4. Step 4: Simplify right side
    124,633.70x = 7,546,417,318.23
  5. Step 5: Solve for x
    x = 7,546,417,318.23/124,633.70
  6. Step 6: Final answer
    x = 60,548.77

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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.