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Finding the Fourth Proportional to 191,115.80, 286,657.19 and 64,753.37

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Solution

The fourth proportional to 191,115.80, 286,657.19 and 64,753.37 is: 97,124.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,115.80 : 286,657.19 = 64,753.37 : x
  2. Step 2: Convert to fraction form
    191,115.80/286,657.19 = 64,753.37/x
  3. Step 3: Cross multiply
    191,115.80x = 286,657.19 × 64,753.37
  4. Step 4: Simplify right side
    191,115.80x = 18,562,019,087.23
  5. Step 5: Solve for x
    x = 18,562,019,087.23/191,115.80
  6. Step 6: Final answer
    x = 97,124.46

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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.