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Finding the Fourth Proportional to 83,484.51, 115,361.37 and 60,784.08

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Solution

The fourth proportional to 83,484.51, 115,361.37 and 60,784.08 is: 83,993.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,484.51 : 115,361.37 = 60,784.08 : x
  2. Step 2: Convert to fraction form
    83,484.51/115,361.37 = 60,784.08/x
  3. Step 3: Cross multiply
    83,484.51x = 115,361.37 × 60,784.08
  4. Step 4: Simplify right side
    83,484.51x = 7,012,134,742.99
  5. Step 5: Solve for x
    x = 7,012,134,742.99/83,484.51
  6. Step 6: Final answer
    x = 83,993.24

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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.