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Finding the Fourth Proportional to 145,573.19, 218,359.88 and 40,392.26

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Solution

The fourth proportional to 145,573.19, 218,359.88 and 40,392.26 is: 60,588.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,573.19 : 218,359.88 = 40,392.26 : x
  2. Step 2: Convert to fraction form
    145,573.19/218,359.88 = 40,392.26/x
  3. Step 3: Cross multiply
    145,573.19x = 218,359.88 × 40,392.26
  4. Step 4: Simplify right side
    145,573.19x = 8,820,049,046.53
  5. Step 5: Solve for x
    x = 8,820,049,046.53/145,573.19
  6. Step 6: Final answer
    x = 60,588.42

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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.