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Finding the Fourth Proportional to 108,477.36, 149,716.49 and 64,866.96

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Solution

The fourth proportional to 108,477.36, 149,716.49 and 64,866.96 is: 89,527.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,477.36 : 149,716.49 = 64,866.96 : x
  2. Step 2: Convert to fraction form
    108,477.36/149,716.49 = 64,866.96/x
  3. Step 3: Cross multiply
    108,477.36x = 149,716.49 × 64,866.96
  4. Step 4: Simplify right side
    108,477.36x = 9,711,653,243.84
  5. Step 5: Solve for x
    x = 9,711,653,243.84/108,477.36
  6. Step 6: Final answer
    x = 89,527.01

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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.