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Finding the Fourth Proportional to 156,575.53, 216,130.28 and 92,913.33

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Solution

The fourth proportional to 156,575.53, 216,130.28 and 92,913.33 is: 128,253.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,575.53 : 216,130.28 = 92,913.33 : x
  2. Step 2: Convert to fraction form
    156,575.53/216,130.28 = 92,913.33/x
  3. Step 3: Cross multiply
    156,575.53x = 216,130.28 × 92,913.33
  4. Step 4: Simplify right side
    156,575.53x = 20,081,383,158.82
  5. Step 5: Solve for x
    x = 20,081,383,158.82/156,575.53
  6. Step 6: Final answer
    x = 128,253.65

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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.