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Finding the Fourth Proportional to 170,916.40, 256,374.60 and 151,233.40

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Solution

The fourth proportional to 170,916.40, 256,374.60 and 151,233.40 is: 226,850.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,916.40 : 256,374.60 = 151,233.40 : x
  2. Step 2: Convert to fraction form
    170,916.40/256,374.60 = 151,233.40/x
  3. Step 3: Cross multiply
    170,916.40x = 256,374.60 × 151,233.40
  4. Step 4: Simplify right side
    170,916.40x = 38,772,402,431.64
  5. Step 5: Solve for x
    x = 38,772,402,431.64/170,916.40
  6. Step 6: Final answer
    x = 226,850.10

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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.