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Finding the Fourth Proportional to 141,969.50, 212,990.26 and 53,223.26

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Solution

The fourth proportional to 141,969.50, 212,990.26 and 53,223.26 is: 79,848.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,969.50 : 212,990.26 = 53,223.26 : x
  2. Step 2: Convert to fraction form
    141,969.50/212,990.26 = 53,223.26/x
  3. Step 3: Cross multiply
    141,969.50x = 212,990.26 × 53,223.26
  4. Step 4: Simplify right side
    141,969.50x = 11,336,035,985.45
  5. Step 5: Solve for x
    x = 11,336,035,985.45/141,969.50
  6. Step 6: Final answer
    x = 79,848.39

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1.5x scale

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.