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Finding the Fourth Proportional to 368,436.76, 552,655.10 and 102,197.30

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Solution

The fourth proportional to 368,436.76, 552,655.10 and 102,197.30 is: 153,295.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,436.76 : 552,655.10 = 102,197.30 : x
  2. Step 2: Convert to fraction form
    368,436.76/552,655.10 = 102,197.30/x
  3. Step 3: Cross multiply
    368,436.76x = 552,655.10 × 102,197.30
  4. Step 4: Simplify right side
    368,436.76x = 56,479,856,543.45
  5. Step 5: Solve for x
    x = 56,479,856,543.45/368,436.76
  6. Step 6: Final answer
    x = 153,295.93

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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.