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Finding the Fourth Proportional to 188,502.77, 282,372.24 and 87,156.79

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Solution

The fourth proportional to 188,502.77, 282,372.24 and 87,156.79 is: 130,558.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,502.77 : 282,372.24 = 87,156.79 : x
  2. Step 2: Convert to fraction form
    188,502.77/282,372.24 = 87,156.79/x
  3. Step 3: Cross multiply
    188,502.77x = 282,372.24 × 87,156.79
  4. Step 4: Simplify right side
    188,502.77x = 24,610,657,644.42
  5. Step 5: Solve for x
    x = 24,610,657,644.42/188,502.77
  6. Step 6: Final answer
    x = 130,558.60

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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.