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Finding the Fourth Proportional to 118,272.68, 163,252.48 and 72,964.76

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Solution

The fourth proportional to 118,272.68, 163,252.48 and 72,964.76 is: 100,713.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,272.68 : 163,252.48 = 72,964.76 : x
  2. Step 2: Convert to fraction form
    118,272.68/163,252.48 = 72,964.76/x
  3. Step 3: Cross multiply
    118,272.68x = 163,252.48 × 72,964.76
  4. Step 4: Simplify right side
    118,272.68x = 11,911,678,022.60
  5. Step 5: Solve for x
    x = 11,911,678,022.60/118,272.68
  6. Step 6: Final answer
    x = 100,713.69

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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.