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Finding the Fourth Proportional to 156,383.76, 215,804.34 and 92,683.74

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Solution

The fourth proportional to 156,383.76, 215,804.34 and 92,683.74 is: 127,900.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,383.76 : 215,804.34 = 92,683.74 : x
  2. Step 2: Convert to fraction form
    156,383.76/215,804.34 = 92,683.74/x
  3. Step 3: Cross multiply
    156,383.76x = 215,804.34 × 92,683.74
  4. Step 4: Simplify right side
    156,383.76x = 20,001,553,339.43
  5. Step 5: Solve for x
    x = 20,001,553,339.43/156,383.76
  6. Step 6: Final answer
    x = 127,900.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.