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Finding the Fourth Proportional to 165,242.80, 247,880.40 and 52,894.72

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Solution

The fourth proportional to 165,242.80, 247,880.40 and 52,894.72 is: 79,347.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,242.80 : 247,880.40 = 52,894.72 : x
  2. Step 2: Convert to fraction form
    165,242.80/247,880.40 = 52,894.72/x
  3. Step 3: Cross multiply
    165,242.80x = 247,880.40 × 52,894.72
  4. Step 4: Simplify right side
    165,242.80x = 13,111,564,351.49
  5. Step 5: Solve for x
    x = 13,111,564,351.49/165,242.80
  6. Step 6: Final answer
    x = 79,347.27

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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.