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Finding the Fourth Proportional to 159,675.55, 239,670.91 and 84,795.48

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Solution

The fourth proportional to 159,675.55, 239,670.91 and 84,795.48 is: 127,276.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,675.55 : 239,670.91 = 84,795.48 : x
  2. Step 2: Convert to fraction form
    159,675.55/239,670.91 = 84,795.48/x
  3. Step 3: Cross multiply
    159,675.55x = 239,670.91 × 84,795.48
  4. Step 4: Simplify right side
    159,675.55x = 20,323,009,431.51
  5. Step 5: Solve for x
    x = 20,323,009,431.51/159,675.55
  6. Step 6: Final answer
    x = 127,276.90

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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.