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Finding the Fourth Proportional to 134,380, 201,445.36 and 59,460.32

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Solution

The fourth proportional to 134,380, 201,445.36 and 59,460.32 is: 89,135.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,380 : 201,445.36 = 59,460.32 : x
  2. Step 2: Convert to fraction form
    134,380/201,445.36 = 59,460.32/x
  3. Step 3: Cross multiply
    134,380x = 201,445.36 × 59,460.32
  4. Step 4: Simplify right side
    134,380x = 11,978,005,568.12
  5. Step 5: Solve for x
    x = 11,978,005,568.12/134,380
  6. Step 6: Final answer
    x = 89,135.33

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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.