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Finding the Fourth Proportional to 518,073.90, 777,154.57 and 144,096.90

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Solution

The fourth proportional to 518,073.90, 777,154.57 and 144,096.90 is: 216,157.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,073.90 : 777,154.57 = 144,096.90 : x
  2. Step 2: Convert to fraction form
    518,073.90/777,154.57 = 144,096.90/x
  3. Step 3: Cross multiply
    518,073.90x = 777,154.57 × 144,096.90
  4. Step 4: Simplify right side
    518,073.90x = 111,985,564,357.83
  5. Step 5: Solve for x
    x = 111,985,564,357.83/518,073.90
  6. Step 6: Final answer
    x = 216,157.51

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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.