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Finding the Fourth Proportional to 70,133.93, 105,214.61 and 25,761.02

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Solution

The fourth proportional to 70,133.93, 105,214.61 and 25,761.02 is: 38,646.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,133.93 : 105,214.61 = 25,761.02 : x
  2. Step 2: Convert to fraction form
    70,133.93/105,214.61 = 25,761.02/x
  3. Step 3: Cross multiply
    70,133.93x = 105,214.61 × 25,761.02
  4. Step 4: Simplify right side
    70,133.93x = 2,710,435,210.83
  5. Step 5: Solve for x
    x = 2,710,435,210.83/70,133.93
  6. Step 6: Final answer
    x = 38,646.56

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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.