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Finding the Fourth Proportional to 118,087.44, 162,952.52 and 66,412.28

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Solution

The fourth proportional to 118,087.44, 162,952.52 and 66,412.28 is: 91,644.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,087.44 : 162,952.52 = 66,412.28 : x
  2. Step 2: Convert to fraction form
    118,087.44/162,952.52 = 66,412.28/x
  3. Step 3: Cross multiply
    118,087.44x = 162,952.52 × 66,412.28
  4. Step 4: Simplify right side
    118,087.44x = 10,822,047,238.12
  5. Step 5: Solve for x
    x = 10,822,047,238.12/118,087.44
  6. Step 6: Final answer
    x = 91,644.35

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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.