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Finding the Fourth Proportional to 156,957.59, 216,601.80 and 85,337.57

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Solution

The fourth proportional to 156,957.59, 216,601.80 and 85,337.57 is: 117,766.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,957.59 : 216,601.80 = 85,337.57 : x
  2. Step 2: Convert to fraction form
    156,957.59/216,601.80 = 85,337.57/x
  3. Step 3: Cross multiply
    156,957.59x = 216,601.80 × 85,337.57
  4. Step 4: Simplify right side
    156,957.59x = 18,484,271,269.63
  5. Step 5: Solve for x
    x = 18,484,271,269.63/156,957.59
  6. Step 6: Final answer
    x = 117,766.02

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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.