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Finding the Fourth Proportional to 290,756.63, 401,262.95 and 168,273.69

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Solution

The fourth proportional to 290,756.63, 401,262.95 and 168,273.69 is: 232,228.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,756.63 : 401,262.95 = 168,273.69 : x
  2. Step 2: Convert to fraction form
    290,756.63/401,262.95 = 168,273.69/x
  3. Step 3: Cross multiply
    290,756.63x = 401,262.95 × 168,273.69
  4. Step 4: Simplify right side
    290,756.63x = 67,521,997,256.79
  5. Step 5: Solve for x
    x = 67,521,997,256.79/290,756.63
  6. Step 6: Final answer
    x = 232,228.57

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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.