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Finding the Fourth Proportional to 82,703.69, 124,048.14 and 26,528.53

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Solution

The fourth proportional to 82,703.69, 124,048.14 and 26,528.53 is: 39,790.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,703.69 : 124,048.14 = 26,528.53 : x
  2. Step 2: Convert to fraction form
    82,703.69/124,048.14 = 26,528.53/x
  3. Step 3: Cross multiply
    82,703.69x = 124,048.14 × 26,528.53
  4. Step 4: Simplify right side
    82,703.69x = 3,290,814,803.43
  5. Step 5: Solve for x
    x = 3,290,814,803.43/82,703.69
  6. Step 6: Final answer
    x = 39,790.42

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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.