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Finding the Fourth Proportional to 93,517.74, 128,969.01 and 73,102.50

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Solution

The fourth proportional to 93,517.74, 128,969.01 and 73,102.50 is: 100,814.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,517.74 : 128,969.01 = 73,102.50 : x
  2. Step 2: Convert to fraction form
    93,517.74/128,969.01 = 73,102.50/x
  3. Step 3: Cross multiply
    93,517.74x = 128,969.01 × 73,102.50
  4. Step 4: Simplify right side
    93,517.74x = 9,427,957,053.53
  5. Step 5: Solve for x
    x = 9,427,957,053.53/93,517.74
  6. Step 6: Final answer
    x = 100,814.64

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1.5x scale

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.