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Finding the Fourth Proportional to 73,745,600.80, 110,523,922.80 and 65,620,458.40

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Solution

The fourth proportional to 73,745,600.80, 110,523,922.80 and 65,620,458.40 is: 98,346,618.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,745,600.80 : 110,523,922.80 = 65,620,458.40 : x
  2. Step 2: Convert to fraction form
    73,745,600.80/110,523,922.80 = 65,620,458.40/x
  3. Step 3: Cross multiply
    73,745,600.80x = 110,523,922.80 × 65,620,458.40
  4. Step 4: Simplify right side
    73,745,600.80x = 7,252,630,478,302,211
  5. Step 5: Solve for x
    x = 7,252,630,478,302,211/73,745,600.80
  6. Step 6: Final answer
    x = 98,346,618.64

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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.