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Finding the Fourth Proportional to 156,644.40, 216,281.64 and 96,295.98

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Solution

The fourth proportional to 156,644.40, 216,281.64 and 96,295.98 is: 132,957.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,644.40 : 216,281.64 = 96,295.98 : x
  2. Step 2: Convert to fraction form
    156,644.40/216,281.64 = 96,295.98/x
  3. Step 3: Cross multiply
    156,644.40x = 216,281.64 × 96,295.98
  4. Step 4: Simplify right side
    156,644.40x = 20,827,052,479.81
  5. Step 5: Solve for x
    x = 20,827,052,479.81/156,644.40
  6. Step 6: Final answer
    x = 132,957.53

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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.