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Finding the Fourth Proportional to 70,434.54, 105,655.08 and 26,053.02

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Solution

The fourth proportional to 70,434.54, 105,655.08 and 26,053.02 is: 39,080.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,434.54 : 105,655.08 = 26,053.02 : x
  2. Step 2: Convert to fraction form
    70,434.54/105,655.08 = 26,053.02/x
  3. Step 3: Cross multiply
    70,434.54x = 105,655.08 × 26,053.02
  4. Step 4: Simplify right side
    70,434.54x = 2,752,633,912.34
  5. Step 5: Solve for x
    x = 2,752,633,912.34/70,434.54
  6. Step 6: Final answer
    x = 39,080.74

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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.