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Finding the Fourth Proportional to 76,015.09, 104,929.01 and 45,802.09

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Solution

The fourth proportional to 76,015.09, 104,929.01 and 45,802.09 is: 63,223.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,015.09 : 104,929.01 = 45,802.09 : x
  2. Step 2: Convert to fraction form
    76,015.09/104,929.01 = 45,802.09/x
  3. Step 3: Cross multiply
    76,015.09x = 104,929.01 × 45,802.09
  4. Step 4: Simplify right side
    76,015.09x = 4,805,967,640.06
  5. Step 5: Solve for x
    x = 4,805,967,640.06/76,015.09
  6. Step 6: Final answer
    x = 63,223.87

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1.5x scale

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.