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Finding the Fourth Proportional to 113,658.50, 156,848.74 and 63,357.50

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Solution

The fourth proportional to 113,658.50, 156,848.74 and 63,357.50 is: 87,433.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,658.50 : 156,848.74 = 63,357.50 : x
  2. Step 2: Convert to fraction form
    113,658.50/156,848.74 = 63,357.50/x
  3. Step 3: Cross multiply
    113,658.50x = 156,848.74 × 63,357.50
  4. Step 4: Simplify right side
    113,658.50x = 9,937,544,044.55
  5. Step 5: Solve for x
    x = 9,937,544,044.55/113,658.50
  6. Step 6: Final answer
    x = 87,433.36

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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.