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Finding the Fourth Proportional to 191,099.37, 286,655.09 and 48,945.54

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Solution

The fourth proportional to 191,099.37, 286,655.09 and 48,945.54 is: 73,419.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,099.37 : 286,655.09 = 48,945.54 : x
  2. Step 2: Convert to fraction form
    191,099.37/286,655.09 = 48,945.54/x
  3. Step 3: Cross multiply
    191,099.37x = 286,655.09 × 48,945.54
  4. Step 4: Simplify right side
    191,099.37x = 14,030,487,929.07
  5. Step 5: Solve for x
    x = 14,030,487,929.07/191,099.37
  6. Step 6: Final answer
    x = 73,419.85

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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.