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Finding the Fourth Proportional to 134,978.40, 202,467.60 and 97,653.60

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Solution

The fourth proportional to 134,978.40, 202,467.60 and 97,653.60 is: 146,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,978.40 : 202,467.60 = 97,653.60 : x
  2. Step 2: Convert to fraction form
    134,978.40/202,467.60 = 97,653.60/x
  3. Step 3: Cross multiply
    134,978.40x = 202,467.60 × 97,653.60
  4. Step 4: Simplify right side
    134,978.40x = 19,771,690,023.36
  5. Step 5: Solve for x
    x = 19,771,690,023.36/134,978.40
  6. Step 6: Final answer
    x = 146,480.40

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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.