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Finding the Fourth Proportional to 83,784.38, 115,622.64 and 46,061.06

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Solution

The fourth proportional to 83,784.38, 115,622.64 and 46,061.06 is: 63,564.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,784.38 : 115,622.64 = 46,061.06 : x
  2. Step 2: Convert to fraction form
    83,784.38/115,622.64 = 46,061.06/x
  3. Step 3: Cross multiply
    83,784.38x = 115,622.64 × 46,061.06
  4. Step 4: Simplify right side
    83,784.38x = 5,325,700,780.29
  5. Step 5: Solve for x
    x = 5,325,700,780.29/83,784.38
  6. Step 6: Final answer
    x = 63,564.37

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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.