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Finding the Fourth Proportional to 548,655.61, 822,900.25 and 149,327.50

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Solution

The fourth proportional to 548,655.61, 822,900.25 and 149,327.50 is: 223,968.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,655.61 : 822,900.25 = 149,327.50 : x
  2. Step 2: Convert to fraction form
    548,655.61/822,900.25 = 149,327.50/x
  3. Step 3: Cross multiply
    548,655.61x = 822,900.25 × 149,327.50
  4. Step 4: Simplify right side
    548,655.61x = 122,881,637,081.88
  5. Step 5: Solve for x
    x = 122,881,637,081.88/548,655.61
  6. Step 6: Final answer
    x = 223,968.61

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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.