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Finding the Fourth Proportional to 363,887.80, 545,831.70 and 186,740.80

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Solution

The fourth proportional to 363,887.80, 545,831.70 and 186,740.80 is: 280,111.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,887.80 : 545,831.70 = 186,740.80 : x
  2. Step 2: Convert to fraction form
    363,887.80/545,831.70 = 186,740.80/x
  3. Step 3: Cross multiply
    363,887.80x = 545,831.70 × 186,740.80
  4. Step 4: Simplify right side
    363,887.80x = 101,929,048,323.36
  5. Step 5: Solve for x
    x = 101,929,048,323.36/363,887.80
  6. Step 6: Final answer
    x = 280,111.20

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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.