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Finding the Fourth Proportional to 124,332.94, 186,219.01 and 87,059.42

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Solution

The fourth proportional to 124,332.94, 186,219.01 and 87,059.42 is: 130,392.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,332.94 : 186,219.01 = 87,059.42 : x
  2. Step 2: Convert to fraction form
    124,332.94/186,219.01 = 87,059.42/x
  3. Step 3: Cross multiply
    124,332.94x = 186,219.01 × 87,059.42
  4. Step 4: Simplify right side
    124,332.94x = 16,212,118,879.62
  5. Step 5: Solve for x
    x = 16,212,118,879.62/124,332.94
  6. Step 6: Final answer
    x = 130,392.79

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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.