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Finding the Fourth Proportional to 190,463.04, 285,695.04 and 57,343.68

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Solution

The fourth proportional to 190,463.04, 285,695.04 and 57,343.68 is: 86,015.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,463.04 : 285,695.04 = 57,343.68 : x
  2. Step 2: Convert to fraction form
    190,463.04/285,695.04 = 57,343.68/x
  3. Step 3: Cross multiply
    190,463.04x = 285,695.04 × 57,343.68
  4. Step 4: Simplify right side
    190,463.04x = 16,382,804,951.35
  5. Step 5: Solve for x
    x = 16,382,804,951.35/190,463.04
  6. Step 6: Final answer
    x = 86,015.66

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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.