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Finding the Fourth Proportional to 203,178.48, 304,787.76 and 70,041.22

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Solution

The fourth proportional to 203,178.48, 304,787.76 and 70,041.22 is: 105,068.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,178.48 : 304,787.76 = 70,041.22 : x
  2. Step 2: Convert to fraction form
    203,178.48/304,787.76 = 70,041.22/x
  3. Step 3: Cross multiply
    203,178.48x = 304,787.76 × 70,041.22
  4. Step 4: Simplify right side
    203,178.48x = 21,347,706,551.47
  5. Step 5: Solve for x
    x = 21,347,706,551.47/203,178.48
  6. Step 6: Final answer
    x = 105,068.74

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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.