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Finding the Fourth Proportional to 156,636.80, 216,060.46 and 92,929.52

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Solution

The fourth proportional to 156,636.80, 216,060.46 and 92,929.52 is: 128,184.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,636.80 : 216,060.46 = 92,929.52 : x
  2. Step 2: Convert to fraction form
    156,636.80/216,060.46 = 92,929.52/x
  3. Step 3: Cross multiply
    156,636.80x = 216,060.46 × 92,929.52
  4. Step 4: Simplify right side
    156,636.80x = 20,078,394,838.78
  5. Step 5: Solve for x
    x = 20,078,394,838.78/156,636.80
  6. Step 6: Final answer
    x = 128,184.40

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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.