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Finding the Fourth Proportional to 548,656.62, 822,901.76 and 149,328.50

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Solution

The fourth proportional to 548,656.62, 822,901.76 and 149,328.50 is: 223,970.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,656.62 : 822,901.76 = 149,328.50 : x
  2. Step 2: Convert to fraction form
    548,656.62/822,901.76 = 149,328.50/x
  3. Step 3: Cross multiply
    548,656.62x = 822,901.76 × 149,328.50
  4. Step 4: Simplify right side
    548,656.62x = 122,882,685,468.16
  5. Step 5: Solve for x
    x = 122,882,685,468.16/548,656.62
  6. Step 6: Final answer
    x = 223,970.11

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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.