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Finding the Fourth Proportional to 111,097.76, 153,321.68 and 63,360.32

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Solution

The fourth proportional to 111,097.76, 153,321.68 and 63,360.32 is: 87,441.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,097.76 : 153,321.68 = 63,360.32 : x
  2. Step 2: Convert to fraction form
    111,097.76/153,321.68 = 63,360.32/x
  3. Step 3: Cross multiply
    111,097.76x = 153,321.68 × 63,360.32
  4. Step 4: Simplify right side
    111,097.76x = 9,714,510,707.74
  5. Step 5: Solve for x
    x = 9,714,510,707.74/111,097.76
  6. Step 6: Final answer
    x = 87,441.10

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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.