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Finding the Fourth Proportional to 242,561.40, 363,842.10 and 171,702.60

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Solution

The fourth proportional to 242,561.40, 363,842.10 and 171,702.60 is: 257,553.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,561.40 : 363,842.10 = 171,702.60 : x
  2. Step 2: Convert to fraction form
    242,561.40/363,842.10 = 171,702.60/x
  3. Step 3: Cross multiply
    242,561.40x = 363,842.10 × 171,702.60
  4. Step 4: Simplify right side
    242,561.40x = 62,472,634,559.46
  5. Step 5: Solve for x
    x = 62,472,634,559.46/242,561.40
  6. Step 6: Final answer
    x = 257,553.90

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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.