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Finding the Fourth Proportional to 368,452.10, 552,602.55 and 102,145.70

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Solution

The fourth proportional to 368,452.10, 552,602.55 and 102,145.70 is: 153,197.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,452.10 : 552,602.55 = 102,145.70 : x
  2. Step 2: Convert to fraction form
    368,452.10/552,602.55 = 102,145.70/x
  3. Step 3: Cross multiply
    368,452.10x = 552,602.55 × 102,145.70
  4. Step 4: Simplify right side
    368,452.10x = 56,445,974,291.54
  5. Step 5: Solve for x
    x = 56,445,974,291.54/368,452.10
  6. Step 6: Final answer
    x = 153,197.59

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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.