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Finding the Fourth Proportional to 151,271.60, 226,907.40 and 84,916.40

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Solution

The fourth proportional to 151,271.60, 226,907.40 and 84,916.40 is: 127,374.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,271.60 : 226,907.40 = 84,916.40 : x
  2. Step 2: Convert to fraction form
    151,271.60/226,907.40 = 84,916.40/x
  3. Step 3: Cross multiply
    151,271.60x = 226,907.40 × 84,916.40
  4. Step 4: Simplify right side
    151,271.60x = 19,268,159,541.36
  5. Step 5: Solve for x
    x = 19,268,159,541.36/151,271.60
  6. Step 6: Final answer
    x = 127,374.60

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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.