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Finding the Fourth Proportional to 92,016,398.40, 137,907,374.40 and 48,906,254.40

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Solution

The fourth proportional to 92,016,398.40, 137,907,374.40 and 48,906,254.40 is: 73,297,078.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,016,398.40 : 137,907,374.40 = 48,906,254.40 : x
  2. Step 2: Convert to fraction form
    92,016,398.40/137,907,374.40 = 48,906,254.40/x
  3. Step 3: Cross multiply
    92,016,398.40x = 137,907,374.40 × 48,906,254.40
  4. Step 4: Simplify right side
    92,016,398.40x = 6,744,533,136,042,447
  5. Step 5: Solve for x
    x = 6,744,533,136,042,447/92,016,398.40
  6. Step 6: Final answer
    x = 73,297,078.06

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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.