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Finding the Fourth Proportional to 163,603.25, 225,775.31 and 91,011.94

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Solution

The fourth proportional to 163,603.25, 225,775.31 and 91,011.94 is: 125,598.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,603.25 : 225,775.31 = 91,011.94 : x
  2. Step 2: Convert to fraction form
    163,603.25/225,775.31 = 91,011.94/x
  3. Step 3: Cross multiply
    163,603.25x = 225,775.31 × 91,011.94
  4. Step 4: Simplify right side
    163,603.25x = 20,548,247,947.70
  5. Step 5: Solve for x
    x = 20,548,247,947.70/163,603.25
  6. Step 6: Final answer
    x = 125,598.04

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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.