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Finding the Fourth Proportional to 293,580,672.40, 440,371,008.60 and 120,968,635.60

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Solution

The fourth proportional to 293,580,672.40, 440,371,008.60 and 120,968,635.60 is: 181,452,953.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,580,672.40 : 440,371,008.60 = 120,968,635.60 : x
  2. Step 2: Convert to fraction form
    293,580,672.40/440,371,008.60 = 120,968,635.60/x
  3. Step 3: Cross multiply
    293,580,672.40x = 440,371,008.60 × 120,968,635.60
  4. Step 4: Simplify right side
    293,580,672.40x = 53,271,080,068,137,864
  5. Step 5: Solve for x
    x = 53,271,080,068,137,864/293,580,672.40
  6. Step 6: Final answer
    x = 181,452,953.40

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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.