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Finding the Fourth Proportional to 368,340.11, 552,455.49 and 102,072.86

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Solution

The fourth proportional to 368,340.11, 552,455.49 and 102,072.86 is: 153,094.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,340.11 : 552,455.49 = 102,072.86 : x
  2. Step 2: Convert to fraction form
    368,340.11/552,455.49 = 102,072.86/x
  3. Step 3: Cross multiply
    368,340.11x = 552,455.49 × 102,072.86
  4. Step 4: Simplify right side
    368,340.11x = 56,390,711,887.00
  5. Step 5: Solve for x
    x = 56,390,711,887.00/368,340.11
  6. Step 6: Final answer
    x = 153,094.14

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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.