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Finding the Fourth Proportional to 163,392.52, 225,482.58 and 91,772.56

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Solution

The fourth proportional to 163,392.52, 225,482.58 and 91,772.56 is: 126,646.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,392.52 : 225,482.58 = 91,772.56 : x
  2. Step 2: Convert to fraction form
    163,392.52/225,482.58 = 91,772.56/x
  3. Step 3: Cross multiply
    163,392.52x = 225,482.58 × 91,772.56
  4. Step 4: Simplify right side
    163,392.52x = 20,693,113,602.00
  5. Step 5: Solve for x
    x = 20,693,113,602.00/163,392.52
  6. Step 6: Final answer
    x = 126,646.64

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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.