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Finding the Fourth Proportional to 106,681.98, 147,218.36 and 58,934.32

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Solution

The fourth proportional to 106,681.98, 147,218.36 and 58,934.32 is: 81,327.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,681.98 : 147,218.36 = 58,934.32 : x
  2. Step 2: Convert to fraction form
    106,681.98/147,218.36 = 58,934.32/x
  3. Step 3: Cross multiply
    106,681.98x = 147,218.36 × 58,934.32
  4. Step 4: Simplify right side
    106,681.98x = 8,676,213,938.12
  5. Step 5: Solve for x
    x = 8,676,213,938.12/106,681.98
  6. Step 6: Final answer
    x = 81,327.83

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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.