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Finding the Fourth Proportional to 113,796.51, 157,039.05 and 63,495.51

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Solution

The fourth proportional to 113,796.51, 157,039.05 and 63,495.51 is: 87,623.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,796.51 : 157,039.05 = 63,495.51 : x
  2. Step 2: Convert to fraction form
    113,796.51/157,039.05 = 63,495.51/x
  3. Step 3: Cross multiply
    113,796.51x = 157,039.05 × 63,495.51
  4. Step 4: Simplify right side
    113,796.51x = 9,971,274,569.67
  5. Step 5: Solve for x
    x = 9,971,274,569.67/113,796.51
  6. Step 6: Final answer
    x = 87,623.73

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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.