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Finding the Fourth Proportional to 73,745,602.80, 110,523,925.80 and 65,620,460.40

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Solution

The fourth proportional to 73,745,602.80, 110,523,925.80 and 65,620,460.40 is: 98,346,621.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,745,602.80 : 110,523,925.80 = 65,620,460.40 : x
  2. Step 2: Convert to fraction form
    73,745,602.80/110,523,925.80 = 65,620,460.40/x
  3. Step 3: Cross multiply
    73,745,602.80x = 110,523,925.80 × 65,620,460.40
  4. Step 4: Simplify right side
    73,745,602.80x = 7,252,630,896,211,438
  5. Step 5: Solve for x
    x = 7,252,630,896,211,438/73,745,602.80
  6. Step 6: Final answer
    x = 98,346,621.64

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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.