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Finding the Fourth Proportional to 70,964,229.60, 106,446,344.40 and 30,574,713.60

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Solution

The fourth proportional to 70,964,229.60, 106,446,344.40 and 30,574,713.60 is: 45,862,070.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,964,229.60 : 106,446,344.40 = 30,574,713.60 : x
  2. Step 2: Convert to fraction form
    70,964,229.60/106,446,344.40 = 30,574,713.60/x
  3. Step 3: Cross multiply
    70,964,229.60x = 106,446,344.40 × 30,574,713.60
  4. Step 4: Simplify right side
    70,964,229.60x = 3,254,566,493,796,964
  5. Step 5: Solve for x
    x = 3,254,566,493,796,964/70,964,229.60
  6. Step 6: Final answer
    x = 45,862,070.40

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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.