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Finding the Fourth Proportional to 190,732.97, 286,051.26 and 70,723.97

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Solution

The fourth proportional to 190,732.97, 286,051.26 and 70,723.97 is: 106,068.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,732.97 : 286,051.26 = 70,723.97 : x
  2. Step 2: Convert to fraction form
    190,732.97/286,051.26 = 70,723.97/x
  3. Step 3: Cross multiply
    190,732.97x = 286,051.26 × 70,723.97
  4. Step 4: Simplify right side
    190,732.97x = 20,230,679,300.45
  5. Step 5: Solve for x
    x = 20,230,679,300.45/190,732.97
  6. Step 6: Final answer
    x = 106,068.08

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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.