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Finding the Fourth Proportional to 518,483.52, 777,721.62 and 144,506.52

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Solution

The fourth proportional to 518,483.52, 777,721.62 and 144,506.52 is: 216,758.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,483.52 : 777,721.62 = 144,506.52 : x
  2. Step 2: Convert to fraction form
    518,483.52/777,721.62 = 144,506.52/x
  3. Step 3: Cross multiply
    518,483.52x = 777,721.62 × 144,506.52
  4. Step 4: Simplify right side
    518,483.52x = 112,385,844,834.96
  5. Step 5: Solve for x
    x = 112,385,844,834.96/518,483.52
  6. Step 6: Final answer
    x = 216,758.76

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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.