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Finding the Fourth Proportional to 108,364.86, 149,573.56 and 63,051.60

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Solution

The fourth proportional to 108,364.86, 149,573.56 and 63,051.60 is: 87,028.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,364.86 : 149,573.56 = 63,051.60 : x
  2. Step 2: Convert to fraction form
    108,364.86/149,573.56 = 63,051.60/x
  3. Step 3: Cross multiply
    108,364.86x = 149,573.56 × 63,051.60
  4. Step 4: Simplify right side
    108,364.86x = 9,430,852,275.70
  5. Step 5: Solve for x
    x = 9,430,852,275.70/108,364.86
  6. Step 6: Final answer
    x = 87,028.69

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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.