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Finding the Fourth Proportional to 113,377.50, 156,460.95 and 63,076.50

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Solution

The fourth proportional to 113,377.50, 156,460.95 and 63,076.50 is: 87,045.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,377.50 : 156,460.95 = 63,076.50 : x
  2. Step 2: Convert to fraction form
    113,377.50/156,460.95 = 63,076.50/x
  3. Step 3: Cross multiply
    113,377.50x = 156,460.95 × 63,076.50
  4. Step 4: Simplify right side
    113,377.50x = 9,869,009,112.68
  5. Step 5: Solve for x
    x = 9,869,009,112.68/113,377.50
  6. Step 6: Final answer
    x = 87,045.57

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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.