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Finding the Fourth Proportional to 160,969.60, 241,443.60 and 42,638.40

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Solution

The fourth proportional to 160,969.60, 241,443.60 and 42,638.40 is: 63,954.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,969.60 : 241,443.60 = 42,638.40 : x
  2. Step 2: Convert to fraction form
    160,969.60/241,443.60 = 42,638.40/x
  3. Step 3: Cross multiply
    160,969.60x = 241,443.60 × 42,638.40
  4. Step 4: Simplify right side
    160,969.60x = 10,294,768,794.24
  5. Step 5: Solve for x
    x = 10,294,768,794.24/160,969.60
  6. Step 6: Final answer
    x = 63,954.74

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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.