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Finding the Fourth Proportional to 117,886.59, 176,831.73 and 65,628.21

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Solution

The fourth proportional to 117,886.59, 176,831.73 and 65,628.21 is: 98,443.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,886.59 : 176,831.73 = 65,628.21 : x
  2. Step 2: Convert to fraction form
    117,886.59/176,831.73 = 65,628.21/x
  3. Step 3: Cross multiply
    117,886.59x = 176,831.73 × 65,628.21
  4. Step 4: Simplify right side
    117,886.59x = 11,605,149,911.10
  5. Step 5: Solve for x
    x = 11,605,149,911.10/117,886.59
  6. Step 6: Final answer
    x = 98,443.34

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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.