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Finding the Fourth Proportional to 73,103,655.30, 109,655,482.95 and 30,003,790.20

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Solution

The fourth proportional to 73,103,655.30, 109,655,482.95 and 30,003,790.20 is: 45,005,685.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,103,655.30 : 109,655,482.95 = 30,003,790.20 : x
  2. Step 2: Convert to fraction form
    73,103,655.30/109,655,482.95 = 30,003,790.20/x
  3. Step 3: Cross multiply
    73,103,655.30x = 109,655,482.95 × 30,003,790.20
  4. Step 4: Simplify right side
    73,103,655.30x = 3,290,080,104,711,477
  5. Step 5: Solve for x
    x = 3,290,080,104,711,477/73,103,655.30
  6. Step 6: Final answer
    x = 45,005,685.30

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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.