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Finding the Fourth Proportional to 156,885.48, 216,506.72 and 96,491.60

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Solution

The fourth proportional to 156,885.48, 216,506.72 and 96,491.60 is: 133,161.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,885.48 : 216,506.72 = 96,491.60 : x
  2. Step 2: Convert to fraction form
    156,885.48/216,506.72 = 96,491.60/x
  3. Step 3: Cross multiply
    156,885.48x = 216,506.72 × 96,491.60
  4. Step 4: Simplify right side
    156,885.48x = 20,891,079,823.55
  5. Step 5: Solve for x
    x = 20,891,079,823.55/156,885.48
  6. Step 6: Final answer
    x = 133,161.33

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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.