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Finding the Fourth Proportional to 93,989.01, 129,692.84 and 53,705.39

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Solution

The fourth proportional to 93,989.01, 129,692.84 and 53,705.39 is: 74,106.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,989.01 : 129,692.84 = 53,705.39 : x
  2. Step 2: Convert to fraction form
    93,989.01/129,692.84 = 53,705.39/x
  3. Step 3: Cross multiply
    93,989.01x = 129,692.84 × 53,705.39
  4. Step 4: Simplify right side
    93,989.01x = 6,965,204,552.41
  5. Step 5: Solve for x
    x = 6,965,204,552.41/93,989.01
  6. Step 6: Final answer
    x = 74,106.58

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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.