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Finding the Fourth Proportional to 119,989.44, 165,602.88 and 69,716.16

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Solution

The fourth proportional to 119,989.44, 165,602.88 and 69,716.16 is: 96,218.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,989.44 : 165,602.88 = 69,716.16 : x
  2. Step 2: Convert to fraction form
    119,989.44/165,602.88 = 69,716.16/x
  3. Step 3: Cross multiply
    119,989.44x = 165,602.88 × 69,716.16
  4. Step 4: Simplify right side
    119,989.44x = 11,545,196,878.54
  5. Step 5: Solve for x
    x = 11,545,196,878.54/119,989.44
  6. Step 6: Final answer
    x = 96,218.44

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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.