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Finding the Fourth Proportional to 248,283, 342,630.54 and 135,106.56

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Solution

The fourth proportional to 248,283, 342,630.54 and 135,106.56 is: 186,447.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,283 : 342,630.54 = 135,106.56 : x
  2. Step 2: Convert to fraction form
    248,283/342,630.54 = 135,106.56/x
  3. Step 3: Cross multiply
    248,283x = 342,630.54 × 135,106.56
  4. Step 4: Simplify right side
    248,283x = 46,291,633,610.34
  5. Step 5: Solve for x
    x = 46,291,633,610.34/248,283
  6. Step 6: Final answer
    x = 186,447.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.