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Finding the Fourth Proportional to 545,988.89, 819,099.98 and 191,014.49

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Solution

The fourth proportional to 545,988.89, 819,099.98 and 191,014.49 is: 286,562.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,988.89 : 819,099.98 = 191,014.49 : x
  2. Step 2: Convert to fraction form
    545,988.89/819,099.98 = 191,014.49/x
  3. Step 3: Cross multiply
    545,988.89x = 819,099.98 × 191,014.49
  4. Step 4: Simplify right side
    545,988.89x = 156,459,959,888.14
  5. Step 5: Solve for x
    x = 156,459,959,888.14/545,988.89
  6. Step 6: Final answer
    x = 286,562.54

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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.