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Finding the Fourth Proportional to 73,543.80, 110,315.70 and 43,946.40

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Solution

The fourth proportional to 73,543.80, 110,315.70 and 43,946.40 is: 65,919.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,543.80 : 110,315.70 = 43,946.40 : x
  2. Step 2: Convert to fraction form
    73,543.80/110,315.70 = 43,946.40/x
  3. Step 3: Cross multiply
    73,543.80x = 110,315.70 × 43,946.40
  4. Step 4: Simplify right side
    73,543.80x = 4,847,977,878.48
  5. Step 5: Solve for x
    x = 4,847,977,878.48/73,543.80
  6. Step 6: Final answer
    x = 65,919.60

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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.