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Finding the Fourth Proportional to 79,275.51, 118,964.70 and 34,340.76

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Solution

The fourth proportional to 79,275.51, 118,964.70 and 34,340.76 is: 51,533.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,275.51 : 118,964.70 = 34,340.76 : x
  2. Step 2: Convert to fraction form
    79,275.51/118,964.70 = 34,340.76/x
  3. Step 3: Cross multiply
    79,275.51x = 118,964.70 × 34,340.76
  4. Step 4: Simplify right side
    79,275.51x = 4,085,338,211.17
  5. Step 5: Solve for x
    x = 4,085,338,211.17/79,275.51
  6. Step 6: Final answer
    x = 51,533.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.