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Finding the Fourth Proportional to 161,746.80, 242,611.92 and 61,954.80

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Solution

The fourth proportional to 161,746.80, 242,611.92 and 61,954.80 is: 92,929.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,746.80 : 242,611.92 = 61,954.80 : x
  2. Step 2: Convert to fraction form
    161,746.80/242,611.92 = 61,954.80/x
  3. Step 3: Cross multiply
    161,746.80x = 242,611.92 × 61,954.80
  4. Step 4: Simplify right side
    161,746.80x = 15,030,972,981.22
  5. Step 5: Solve for x
    x = 15,030,972,981.22/161,746.80
  6. Step 6: Final answer
    x = 92,929.03

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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.