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Finding the Fourth Proportional to 191,871.64, 287,758.32 and 56,904.12

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Solution

The fourth proportional to 191,871.64, 287,758.32 and 56,904.12 is: 85,341.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,871.64 : 287,758.32 = 56,904.12 : x
  2. Step 2: Convert to fraction form
    191,871.64/287,758.32 = 56,904.12/x
  3. Step 3: Cross multiply
    191,871.64x = 287,758.32 × 56,904.12
  4. Step 4: Simplify right side
    191,871.64x = 16,374,633,972.28
  5. Step 5: Solve for x
    x = 16,374,633,972.28/191,871.64
  6. Step 6: Final answer
    x = 85,341.61

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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.