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Finding the Fourth Proportional to 134,390, 201,614.15 and 40,893.32

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Solution

The fourth proportional to 134,390, 201,614.15 and 40,893.32 is: 61,348.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,390 : 201,614.15 = 40,893.32 : x
  2. Step 2: Convert to fraction form
    134,390/201,614.15 = 40,893.32/x
  3. Step 3: Cross multiply
    134,390x = 201,614.15 × 40,893.32
  4. Step 4: Simplify right side
    134,390x = 8,244,671,952.48
  5. Step 5: Solve for x
    x = 8,244,671,952.48/134,390
  6. Step 6: Final answer
    x = 61,348.85

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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.