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Finding the Fourth Proportional to 84,653.81, 127,001.86 and 59,742.51

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Solution

The fourth proportional to 84,653.81, 127,001.86 and 59,742.51 is: 89,628.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,653.81 : 127,001.86 = 59,742.51 : x
  2. Step 2: Convert to fraction form
    84,653.81/127,001.86 = 59,742.51/x
  3. Step 3: Cross multiply
    84,653.81x = 127,001.86 × 59,742.51
  4. Step 4: Simplify right side
    84,653.81x = 7,587,410,247.74
  5. Step 5: Solve for x
    x = 7,587,410,247.74/84,653.81
  6. Step 6: Final answer
    x = 89,628.69

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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.