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Finding the Fourth Proportional to 103,574.94, 142,932.15 and 58,860.06

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Solution

The fourth proportional to 103,574.94, 142,932.15 and 58,860.06 is: 81,226.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,574.94 : 142,932.15 = 58,860.06 : x
  2. Step 2: Convert to fraction form
    103,574.94/142,932.15 = 58,860.06/x
  3. Step 3: Cross multiply
    103,574.94x = 142,932.15 × 58,860.06
  4. Step 4: Simplify right side
    103,574.94x = 8,412,994,924.93
  5. Step 5: Solve for x
    x = 8,412,994,924.93/103,574.94
  6. Step 6: Final answer
    x = 81,226.16

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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.