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Finding the Fourth Proportional to 136,254.45, 190,911.75 and 136,254.45

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Solution

The fourth proportional to 136,254.45, 190,911.75 and 136,254.45 is: 190,911.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,254.45 : 190,911.75 = 136,254.45 : x
  2. Step 2: Convert to fraction form
    136,254.45/190,911.75 = 136,254.45/x
  3. Step 3: Cross multiply
    136,254.45x = 190,911.75 × 136,254.45
  4. Step 4: Simplify right side
    136,254.45x = 26,012,575,494.79
  5. Step 5: Solve for x
    x = 26,012,575,494.79/136,254.45
  6. Step 6: Final answer
    x = 190,911.75

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1.5x scale

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.