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Finding the Fourth Proportional to 125,898.53, 173,740.63 and 69,309.91

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Solution

The fourth proportional to 125,898.53, 173,740.63 and 69,309.91 is: 95,648.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,898.53 : 173,740.63 = 69,309.91 : x
  2. Step 2: Convert to fraction form
    125,898.53/173,740.63 = 69,309.91/x
  3. Step 3: Cross multiply
    125,898.53x = 173,740.63 × 69,309.91
  4. Step 4: Simplify right side
    125,898.53x = 12,041,946,559.94
  5. Step 5: Solve for x
    x = 12,041,946,559.94/125,898.53
  6. Step 6: Final answer
    x = 95,648.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.