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Finding the Fourth Proportional to 355,060.40, 532,590.60 and 168,436.40

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Solution

The fourth proportional to 355,060.40, 532,590.60 and 168,436.40 is: 252,654.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,060.40 : 532,590.60 = 168,436.40 : x
  2. Step 2: Convert to fraction form
    355,060.40/532,590.60 = 168,436.40/x
  3. Step 3: Cross multiply
    355,060.40x = 532,590.60 × 168,436.40
  4. Step 4: Simplify right side
    355,060.40x = 89,707,643,337.84
  5. Step 5: Solve for x
    x = 89,707,643,337.84/355,060.40
  6. Step 6: Final answer
    x = 252,654.60

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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.