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Finding the Fourth Proportional to 119,955.40, 180,042.84 and 60,831.88

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Solution

The fourth proportional to 119,955.40, 180,042.84 and 60,831.88 is: 91,303.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,955.40 : 180,042.84 = 60,831.88 : x
  2. Step 2: Convert to fraction form
    119,955.40/180,042.84 = 60,831.88/x
  3. Step 3: Cross multiply
    119,955.40x = 180,042.84 × 60,831.88
  4. Step 4: Simplify right side
    119,955.40x = 10,952,344,437.74
  5. Step 5: Solve for x
    x = 10,952,344,437.74/119,955.40
  6. Step 6: Final answer
    x = 91,303.47

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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.