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Finding the Fourth Proportional to 248,085.60, 372,128.40 and 227,090.40

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Solution

The fourth proportional to 248,085.60, 372,128.40 and 227,090.40 is: 340,635.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,085.60 : 372,128.40 = 227,090.40 : x
  2. Step 2: Convert to fraction form
    248,085.60/372,128.40 = 227,090.40/x
  3. Step 3: Cross multiply
    248,085.60x = 372,128.40 × 227,090.40
  4. Step 4: Simplify right side
    248,085.60x = 84,506,787,207.36
  5. Step 5: Solve for x
    x = 84,506,787,207.36/248,085.60
  6. Step 6: Final answer
    x = 340,635.60

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1.5x scale

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.