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Finding the Fourth Proportional to 124,614.86, 186,811.72 and 45,710.93

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Solution

The fourth proportional to 124,614.86, 186,811.72 and 45,710.93 is: 68,525.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,614.86 : 186,811.72 = 45,710.93 : x
  2. Step 2: Convert to fraction form
    124,614.86/186,811.72 = 45,710.93/x
  3. Step 3: Cross multiply
    124,614.86x = 186,811.72 × 45,710.93
  4. Step 4: Simplify right side
    124,614.86x = 8,539,337,808.85
  5. Step 5: Solve for x
    x = 8,539,337,808.85/124,614.86
  6. Step 6: Final answer
    x = 68,525.84

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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.