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Finding the Fourth Proportional to 93,659.87, 129,250.55 and 51,218.39

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Solution

The fourth proportional to 93,659.87, 129,250.55 and 51,218.39 is: 70,681.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,659.87 : 129,250.55 = 51,218.39 : x
  2. Step 2: Convert to fraction form
    93,659.87/129,250.55 = 51,218.39/x
  3. Step 3: Cross multiply
    93,659.87x = 129,250.55 × 51,218.39
  4. Step 4: Simplify right side
    93,659.87x = 6,620,005,528.79
  5. Step 5: Solve for x
    x = 6,620,005,528.79/93,659.87
  6. Step 6: Final answer
    x = 70,681.34

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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.