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Finding the Fourth Proportional to 119,279.58, 164,607.12 and 64,831.74

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Solution

The fourth proportional to 119,279.58, 164,607.12 and 64,831.74 is: 89,468.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,279.58 : 164,607.12 = 64,831.74 : x
  2. Step 2: Convert to fraction form
    119,279.58/164,607.12 = 64,831.74/x
  3. Step 3: Cross multiply
    119,279.58x = 164,607.12 × 64,831.74
  4. Step 4: Simplify right side
    119,279.58x = 10,671,766,005.99
  5. Step 5: Solve for x
    x = 10,671,766,005.99/119,279.58
  6. Step 6: Final answer
    x = 89,468.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.