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Finding the Fourth Proportional to 368,455.12, 552,694.52 and 102,218.32

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Solution

The fourth proportional to 368,455.12, 552,694.52 and 102,218.32 is: 153,330.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,455.12 : 552,694.52 = 102,218.32 : x
  2. Step 2: Convert to fraction form
    368,455.12/552,694.52 = 102,218.32/x
  3. Step 3: Cross multiply
    368,455.12x = 552,694.52 × 102,218.32
  4. Step 4: Simplify right side
    368,455.12x = 56,495,505,307.61
  5. Step 5: Solve for x
    x = 56,495,505,307.61/368,455.12
  6. Step 6: Final answer
    x = 153,330.76

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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.