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Finding the Fourth Proportional to 84,577.50, 116,716.98 and 51,043.50

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Solution

The fourth proportional to 84,577.50, 116,716.98 and 51,043.50 is: 70,440.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,577.50 : 116,716.98 = 51,043.50 : x
  2. Step 2: Convert to fraction form
    84,577.50/116,716.98 = 51,043.50/x
  3. Step 3: Cross multiply
    84,577.50x = 116,716.98 × 51,043.50
  4. Step 4: Simplify right side
    84,577.50x = 5,957,643,168.63
  5. Step 5: Solve for x
    x = 5,957,643,168.63/84,577.50
  6. Step 6: Final answer
    x = 70,440.05

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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.