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Finding the Fourth Proportional to 368,458.32, 552,784.07 and 115,728.60

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Solution

The fourth proportional to 368,458.32, 552,784.07 and 115,728.60 is: 173,623.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,458.32 : 552,784.07 = 115,728.60 : x
  2. Step 2: Convert to fraction form
    368,458.32/552,784.07 = 115,728.60/x
  3. Step 3: Cross multiply
    368,458.32x = 552,784.07 × 115,728.60
  4. Step 4: Simplify right side
    368,458.32x = 63,972,925,944.76
  5. Step 5: Solve for x
    x = 63,972,925,944.76/368,458.32
  6. Step 6: Final answer
    x = 173,623.24

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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.