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Finding the Fourth Proportional to 159,858.15, 220,588.47 and 88,233.51

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Solution

The fourth proportional to 159,858.15, 220,588.47 and 88,233.51 is: 121,753.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,858.15 : 220,588.47 = 88,233.51 : x
  2. Step 2: Convert to fraction form
    159,858.15/220,588.47 = 88,233.51/x
  3. Step 3: Cross multiply
    159,858.15x = 220,588.47 × 88,233.51
  4. Step 4: Simplify right side
    159,858.15x = 19,463,294,973.63
  5. Step 5: Solve for x
    x = 19,463,294,973.63/159,858.15
  6. Step 6: Final answer
    x = 121,753.54

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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.