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Finding the Fourth Proportional to 252,282.40, 377,905.20 and 127,693.60

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Solution

The fourth proportional to 252,282.40, 377,905.20 and 127,693.60 is: 191,278.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,282.40 : 377,905.20 = 127,693.60 : x
  2. Step 2: Convert to fraction form
    252,282.40/377,905.20 = 127,693.60/x
  3. Step 3: Cross multiply
    252,282.40x = 377,905.20 × 127,693.60
  4. Step 4: Simplify right side
    252,282.40x = 48,256,075,446.72
  5. Step 5: Solve for x
    x = 48,256,075,446.72/252,282.40
  6. Step 6: Final answer
    x = 191,278.01

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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.