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Finding the Fourth Proportional to 518,072.90, 777,153.07 and 144,095.90

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Solution

The fourth proportional to 518,072.90, 777,153.07 and 144,095.90 is: 216,156.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,072.90 : 777,153.07 = 144,095.90 : x
  2. Step 2: Convert to fraction form
    518,072.90/777,153.07 = 144,095.90/x
  3. Step 3: Cross multiply
    518,072.90x = 777,153.07 × 144,095.90
  4. Step 4: Simplify right side
    518,072.90x = 111,984,571,059.41
  5. Step 5: Solve for x
    x = 111,984,571,059.41/518,072.90
  6. Step 6: Final answer
    x = 216,156.01

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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.