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Finding the Fourth Proportional to 113,523, 156,666.60 and 63,222

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Solution

The fourth proportional to 113,523, 156,666.60 and 63,222 is: 87,249.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,523 : 156,666.60 = 63,222 : x
  2. Step 2: Convert to fraction form
    113,523/156,666.60 = 63,222/x
  3. Step 3: Cross multiply
    113,523x = 156,666.60 × 63,222
  4. Step 4: Simplify right side
    113,523x = 9,904,775,785.20
  5. Step 5: Solve for x
    x = 9,904,775,785.20/113,523
  6. Step 6: Final answer
    x = 87,249.07

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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.