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Finding the Fourth Proportional to 108,564.48, 149,808.96 and 60,819.84

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Solution

The fourth proportional to 108,564.48, 149,808.96 and 60,819.84 is: 83,925.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,564.48 : 149,808.96 = 60,819.84 : x
  2. Step 2: Convert to fraction form
    108,564.48/149,808.96 = 60,819.84/x
  3. Step 3: Cross multiply
    108,564.48x = 149,808.96 × 60,819.84
  4. Step 4: Simplify right side
    108,564.48x = 9,111,356,977.77
  5. Step 5: Solve for x
    x = 9,111,356,977.77/108,564.48
  6. Step 6: Final answer
    x = 83,925.76

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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.