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Finding the Fourth Proportional to 523,045.80, 784,702.35 and 168,063.30

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Solution

The fourth proportional to 523,045.80, 784,702.35 and 168,063.30 is: 252,137.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,045.80 : 784,702.35 = 168,063.30 : x
  2. Step 2: Convert to fraction form
    523,045.80/784,702.35 = 168,063.30/x
  3. Step 3: Cross multiply
    523,045.80x = 784,702.35 × 168,063.30
  4. Step 4: Simplify right side
    523,045.80x = 131,879,666,458.76
  5. Step 5: Solve for x
    x = 131,879,666,458.76/523,045.80
  6. Step 6: Final answer
    x = 252,137.89

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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.