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Finding the Fourth Proportional to 201,585, 302,421.23 and 61,339.98

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Solution

The fourth proportional to 201,585, 302,421.23 and 61,339.98 is: 92,023.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,585 : 302,421.23 = 61,339.98 : x
  2. Step 2: Convert to fraction form
    201,585/302,421.23 = 61,339.98/x
  3. Step 3: Cross multiply
    201,585x = 302,421.23 × 61,339.98
  4. Step 4: Simplify right side
    201,585x = 18,550,511,893.08
  5. Step 5: Solve for x
    x = 18,550,511,893.08/201,585
  6. Step 6: Final answer
    x = 92,023.28

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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.