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Finding the Fourth Proportional to 159,360.40, 239,051.40 and 54,187.30

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Solution

The fourth proportional to 159,360.40, 239,051.40 and 54,187.30 is: 81,284.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,360.40 : 239,051.40 = 54,187.30 : x
  2. Step 2: Convert to fraction form
    159,360.40/239,051.40 = 54,187.30/x
  3. Step 3: Cross multiply
    159,360.40x = 239,051.40 × 54,187.30
  4. Step 4: Simplify right side
    159,360.40x = 12,953,549,927.22
  5. Step 5: Solve for x
    x = 12,953,549,927.22/159,360.40
  6. Step 6: Final answer
    x = 81,284.62

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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.