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Finding the Fourth Proportional to 340,916.22, 511,374.06 and 91,598.22

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Solution

The fourth proportional to 340,916.22, 511,374.06 and 91,598.22 is: 137,397.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,916.22 : 511,374.06 = 91,598.22 : x
  2. Step 2: Convert to fraction form
    340,916.22/511,374.06 = 91,598.22/x
  3. Step 3: Cross multiply
    340,916.22x = 511,374.06 × 91,598.22
  4. Step 4: Simplify right side
    340,916.22x = 46,840,953,650.17
  5. Step 5: Solve for x
    x = 46,840,953,650.17/340,916.22
  6. Step 6: Final answer
    x = 137,397.26

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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.