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Finding the Fourth Proportional to 119,887.94, 179,831.60 and 112,580.32

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Solution

The fourth proportional to 119,887.94, 179,831.60 and 112,580.32 is: 168,870.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,887.94 : 179,831.60 = 112,580.32 : x
  2. Step 2: Convert to fraction form
    119,887.94/179,831.60 = 112,580.32/x
  3. Step 3: Cross multiply
    119,887.94x = 179,831.60 × 112,580.32
  4. Step 4: Simplify right side
    119,887.94x = 20,245,498,483.81
  5. Step 5: Solve for x
    x = 20,245,498,483.81/119,887.94
  6. Step 6: Final answer
    x = 168,870.19

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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.