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Finding the Fourth Proportional to 518,070.38, 777,149.32 and 144,093.38

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Solution

The fourth proportional to 518,070.38, 777,149.32 and 144,093.38 is: 216,152.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,070.38 : 777,149.32 = 144,093.38 : x
  2. Step 2: Convert to fraction form
    518,070.38/777,149.32 = 144,093.38/x
  3. Step 3: Cross multiply
    518,070.38x = 777,149.32 × 144,093.38
  4. Step 4: Simplify right side
    518,070.38x = 111,982,072,283.50
  5. Step 5: Solve for x
    x = 111,982,072,283.50/518,070.38
  6. Step 6: Final answer
    x = 216,152.24

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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.