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Finding the Fourth Proportional to 253,688.94, 380,551.17 and 101,886.03

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Solution

The fourth proportional to 253,688.94, 380,551.17 and 101,886.03 is: 152,836.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,688.94 : 380,551.17 = 101,886.03 : x
  2. Step 2: Convert to fraction form
    253,688.94/380,551.17 = 101,886.03/x
  3. Step 3: Cross multiply
    253,688.94x = 380,551.17 × 101,886.03
  4. Step 4: Simplify right side
    253,688.94x = 38,772,846,576.64
  5. Step 5: Solve for x
    x = 38,772,846,576.64/253,688.94
  6. Step 6: Final answer
    x = 152,836.18

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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.