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Finding the Fourth Proportional to 76,153.78, 114,105.81 and 53,927.24

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Solution

The fourth proportional to 76,153.78, 114,105.81 and 53,927.24 is: 80,802.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,153.78 : 114,105.81 = 53,927.24 : x
  2. Step 2: Convert to fraction form
    76,153.78/114,105.81 = 53,927.24/x
  3. Step 3: Cross multiply
    76,153.78x = 114,105.81 × 53,927.24
  4. Step 4: Simplify right side
    76,153.78x = 6,153,411,401.26
  5. Step 5: Solve for x
    x = 6,153,411,401.26/76,153.78
  6. Step 6: Final answer
    x = 80,802.44

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1.5x scale

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.