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Finding the Fourth Proportional to 111,802.51, 167,703.77 and 28,696.51

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Solution

The fourth proportional to 111,802.51, 167,703.77 and 28,696.51 is: 43,044.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,802.51 : 167,703.77 = 28,696.51 : x
  2. Step 2: Convert to fraction form
    111,802.51/167,703.77 = 28,696.51/x
  3. Step 3: Cross multiply
    111,802.51x = 167,703.77 × 28,696.51
  4. Step 4: Simplify right side
    111,802.51x = 4,812,512,912.84
  5. Step 5: Solve for x
    x = 4,812,512,912.84/111,802.51
  6. Step 6: Final answer
    x = 43,044.77

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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.