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Finding the Fourth Proportional to 354,681.81, 532,102.91 and 118,033.83

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Solution

The fourth proportional to 354,681.81, 532,102.91 and 118,033.83 is: 177,077.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,681.81 : 532,102.91 = 118,033.83 : x
  2. Step 2: Convert to fraction form
    354,681.81/532,102.91 = 118,033.83/x
  3. Step 3: Cross multiply
    354,681.81x = 532,102.91 × 118,033.83
  4. Step 4: Simplify right side
    354,681.81x = 62,806,143,831.28
  5. Step 5: Solve for x
    x = 62,806,143,831.28/354,681.81
  6. Step 6: Final answer
    x = 177,077.43

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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.