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Finding the Fourth Proportional to 72,543.60, 100,052.40 and 59,946.48

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Solution

The fourth proportional to 72,543.60, 100,052.40 and 59,946.48 is: 82,678.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,543.60 : 100,052.40 = 59,946.48 : x
  2. Step 2: Convert to fraction form
    72,543.60/100,052.40 = 59,946.48/x
  3. Step 3: Cross multiply
    72,543.60x = 100,052.40 × 59,946.48
  4. Step 4: Simplify right side
    72,543.60x = 5,997,789,195.55
  5. Step 5: Solve for x
    x = 5,997,789,195.55/72,543.60
  6. Step 6: Final answer
    x = 82,678.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.