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Finding the Fourth Proportional to 551,515.25, 827,320.53 and 152,156.03

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Solution

The fourth proportional to 551,515.25, 827,320.53 and 152,156.03 is: 228,247.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,515.25 : 827,320.53 = 152,156.03 : x
  2. Step 2: Convert to fraction form
    551,515.25/827,320.53 = 152,156.03/x
  3. Step 3: Cross multiply
    551,515.25x = 827,320.53 × 152,156.03
  4. Step 4: Simplify right side
    551,515.25x = 125,881,803,245.69
  5. Step 5: Solve for x
    x = 125,881,803,245.69/551,515.25
  6. Step 6: Final answer
    x = 228,247.18

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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.