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Finding the Fourth Proportional to 77,276.08, 106,677.51 and 51,799.08

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Solution

The fourth proportional to 77,276.08, 106,677.51 and 51,799.08 is: 71,507.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,276.08 : 106,677.51 = 51,799.08 : x
  2. Step 2: Convert to fraction form
    77,276.08/106,677.51 = 51,799.08/x
  3. Step 3: Cross multiply
    77,276.08x = 106,677.51 × 51,799.08
  4. Step 4: Simplify right side
    77,276.08x = 5,525,797,226.17
  5. Step 5: Solve for x
    x = 5,525,797,226.17/77,276.08
  6. Step 6: Final answer
    x = 71,507.22

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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.