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Finding the Fourth Proportional to 117,221.16, 175,831.74 and 28,474.07

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Solution

The fourth proportional to 117,221.16, 175,831.74 and 28,474.07 is: 42,711.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,221.16 : 175,831.74 = 28,474.07 : x
  2. Step 2: Convert to fraction form
    117,221.16/175,831.74 = 28,474.07/x
  3. Step 3: Cross multiply
    117,221.16x = 175,831.74 × 28,474.07
  4. Step 4: Simplify right side
    117,221.16x = 5,006,644,393.82
  5. Step 5: Solve for x
    x = 5,006,644,393.82/117,221.16
  6. Step 6: Final answer
    x = 42,711.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.