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Finding the Fourth Proportional to 151,247.76, 208,714.68 and 83,263.32

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Solution

The fourth proportional to 151,247.76, 208,714.68 and 83,263.32 is: 114,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,247.76 : 208,714.68 = 83,263.32 : x
  2. Step 2: Convert to fraction form
    151,247.76/208,714.68 = 83,263.32/x
  3. Step 3: Cross multiply
    151,247.76x = 208,714.68 × 83,263.32
  4. Step 4: Simplify right side
    151,247.76x = 17,378,277,189.54
  5. Step 5: Solve for x
    x = 17,378,277,189.54/151,247.76
  6. Step 6: Final answer
    x = 114,899.40

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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.