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Finding the Fourth Proportional to 401,360.82, 602,129.78 and 117,073.61

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Solution

The fourth proportional to 401,360.82, 602,129.78 and 117,073.61 is: 175,636.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,360.82 : 602,129.78 = 117,073.61 : x
  2. Step 2: Convert to fraction form
    401,360.82/602,129.78 = 117,073.61/x
  3. Step 3: Cross multiply
    401,360.82x = 602,129.78 × 117,073.61
  4. Step 4: Simplify right side
    401,360.82x = 70,493,508,831.11
  5. Step 5: Solve for x
    x = 70,493,508,831.11/401,360.82
  6. Step 6: Final answer
    x = 175,636.25

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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.