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Finding the Fourth Proportional to 159,580.40, 239,405.70 and 47,269.40

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Solution

The fourth proportional to 159,580.40, 239,405.70 and 47,269.40 is: 70,914.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,580.40 : 239,405.70 = 47,269.40 : x
  2. Step 2: Convert to fraction form
    159,580.40/239,405.70 = 47,269.40/x
  3. Step 3: Cross multiply
    159,580.40x = 239,405.70 × 47,269.40
  4. Step 4: Simplify right side
    159,580.40x = 11,316,563,795.58
  5. Step 5: Solve for x
    x = 11,316,563,795.58/159,580.40
  6. Step 6: Final answer
    x = 70,914.50

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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.