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Finding the Fourth Proportional to 169,095.87, 253,647.90 and 56,779.74

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Solution

The fourth proportional to 169,095.87, 253,647.90 and 56,779.74 is: 85,170.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,095.87 : 253,647.90 = 56,779.74 : x
  2. Step 2: Convert to fraction form
    169,095.87/253,647.90 = 56,779.74/x
  3. Step 3: Cross multiply
    169,095.87x = 253,647.90 × 56,779.74
  4. Step 4: Simplify right side
    169,095.87x = 14,402,061,813.55
  5. Step 5: Solve for x
    x = 14,402,061,813.55/169,095.87
  6. Step 6: Final answer
    x = 85,170.99

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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.