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Finding the Fourth Proportional to 108,099.14, 149,133.86 and 72,232.34

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Solution

The fourth proportional to 108,099.14, 149,133.86 and 72,232.34 is: 99,651.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,099.14 : 149,133.86 = 72,232.34 : x
  2. Step 2: Convert to fraction form
    108,099.14/149,133.86 = 72,232.34/x
  3. Step 3: Cross multiply
    108,099.14x = 149,133.86 × 72,232.34
  4. Step 4: Simplify right side
    108,099.14x = 10,772,287,681.03
  5. Step 5: Solve for x
    x = 10,772,287,681.03/108,099.14
  6. Step 6: Final answer
    x = 99,651.93

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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.