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Finding the Fourth Proportional to 117,485.95, 162,133.49 and 63,770.83

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Solution

The fourth proportional to 117,485.95, 162,133.49 and 63,770.83 is: 88,005.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,485.95 : 162,133.49 = 63,770.83 : x
  2. Step 2: Convert to fraction form
    117,485.95/162,133.49 = 63,770.83/x
  3. Step 3: Cross multiply
    117,485.95x = 162,133.49 × 63,770.83
  4. Step 4: Simplify right side
    117,485.95x = 10,339,387,228.10
  5. Step 5: Solve for x
    x = 10,339,387,228.10/117,485.95
  6. Step 6: Final answer
    x = 88,005.31

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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.