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Finding the Fourth Proportional to 136,929.60, 192,254.40 and 136,929.60

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Solution

The fourth proportional to 136,929.60, 192,254.40 and 136,929.60 is: 192,254.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,929.60 : 192,254.40 = 136,929.60 : x
  2. Step 2: Convert to fraction form
    136,929.60/192,254.40 = 136,929.60/x
  3. Step 3: Cross multiply
    136,929.60x = 192,254.40 × 136,929.60
  4. Step 4: Simplify right side
    136,929.60x = 26,325,318,090.24
  5. Step 5: Solve for x
    x = 26,325,318,090.24/136,929.60
  6. Step 6: Final answer
    x = 192,254.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.