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Finding the Fourth Proportional to 294,340.60, 441,510.90 and 72,724.60

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Solution

The fourth proportional to 294,340.60, 441,510.90 and 72,724.60 is: 109,086.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,340.60 : 441,510.90 = 72,724.60 : x
  2. Step 2: Convert to fraction form
    294,340.60/441,510.90 = 72,724.60/x
  3. Step 3: Cross multiply
    294,340.60x = 441,510.90 × 72,724.60
  4. Step 4: Simplify right side
    294,340.60x = 32,108,703,598.14
  5. Step 5: Solve for x
    x = 32,108,703,598.14/294,340.60
  6. Step 6: Final answer
    x = 109,086.90

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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.