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Finding the Fourth Proportional to 364,559.20, 546,838.80 and 127,816.45

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Solution

The fourth proportional to 364,559.20, 546,838.80 and 127,816.45 is: 191,724.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,559.20 : 546,838.80 = 127,816.45 : x
  2. Step 2: Convert to fraction form
    364,559.20/546,838.80 = 127,816.45/x
  3. Step 3: Cross multiply
    364,559.20x = 546,838.80 × 127,816.45
  4. Step 4: Simplify right side
    364,559.20x = 69,894,994,138.26
  5. Step 5: Solve for x
    x = 69,894,994,138.26/364,559.20
  6. Step 6: Final answer
    x = 191,724.68

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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.