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Finding the Fourth Proportional to 482,149, 723,368.04 and 145,200.61

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Solution

The fourth proportional to 482,149, 723,368.04 and 145,200.61 is: 217,844.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,149 : 723,368.04 = 145,200.61 : x
  2. Step 2: Convert to fraction form
    482,149/723,368.04 = 145,200.61/x
  3. Step 3: Cross multiply
    482,149x = 723,368.04 × 145,200.61
  4. Step 4: Simplify right side
    482,149x = 105,033,480,662.50
  5. Step 5: Solve for x
    x = 105,033,480,662.50/482,149
  6. Step 6: Final answer
    x = 217,844.44

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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.