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Finding the Fourth Proportional to 191,076.45, 286,615.35 and 57,957.81

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Solution

The fourth proportional to 191,076.45, 286,615.35 and 57,957.81 is: 86,936.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,076.45 : 286,615.35 = 57,957.81 : x
  2. Step 2: Convert to fraction form
    191,076.45/286,615.35 = 57,957.81/x
  3. Step 3: Cross multiply
    191,076.45x = 286,615.35 × 57,957.81
  4. Step 4: Simplify right side
    191,076.45x = 16,611,597,998.38
  5. Step 5: Solve for x
    x = 16,611,597,998.38/191,076.45
  6. Step 6: Final answer
    x = 86,936.92

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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.