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Finding the Fourth Proportional to 190,469.79, 286,060.28 and 167,681.76

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Solution

The fourth proportional to 190,469.79, 286,060.28 and 167,681.76 is: 251,835.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,469.79 : 286,060.28 = 167,681.76 : x
  2. Step 2: Convert to fraction form
    190,469.79/286,060.28 = 167,681.76/x
  3. Step 3: Cross multiply
    190,469.79x = 286,060.28 × 167,681.76
  4. Step 4: Simplify right side
    190,469.79x = 47,967,089,305.36
  5. Step 5: Solve for x
    x = 47,967,089,305.36/190,469.79
  6. Step 6: Final answer
    x = 251,835.68

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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.