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Finding the Fourth Proportional to 156,951.86, 216,594.93 and 85,331.93

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Solution

The fourth proportional to 156,951.86, 216,594.93 and 85,331.93 is: 117,758.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,951.86 : 216,594.93 = 85,331.93 : x
  2. Step 2: Convert to fraction form
    156,951.86/216,594.93 = 85,331.93/x
  3. Step 3: Cross multiply
    156,951.86x = 216,594.93 × 85,331.93
  4. Step 4: Simplify right side
    156,951.86x = 18,482,463,405.11
  5. Step 5: Solve for x
    x = 18,482,463,405.11/156,951.86
  6. Step 6: Final answer
    x = 117,758.80

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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.