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Finding the Fourth Proportional to 115,583, 173,424.58 and 40,756.59

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Solution

The fourth proportional to 115,583, 173,424.58 and 40,756.59 is: 61,152.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,583 : 173,424.58 = 40,756.59 : x
  2. Step 2: Convert to fraction form
    115,583/173,424.58 = 40,756.59/x
  3. Step 3: Cross multiply
    115,583x = 173,424.58 × 40,756.59
  4. Step 4: Simplify right side
    115,583x = 7,068,194,502.98
  5. Step 5: Solve for x
    x = 7,068,194,502.98/115,583
  6. Step 6: Final answer
    x = 61,152.54

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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.