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Finding the Fourth Proportional to 227,615.40, 341,423.10 and 122,639.40

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Solution

The fourth proportional to 227,615.40, 341,423.10 and 122,639.40 is: 183,959.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,615.40 : 341,423.10 = 122,639.40 : x
  2. Step 2: Convert to fraction form
    227,615.40/341,423.10 = 122,639.40/x
  3. Step 3: Cross multiply
    227,615.40x = 341,423.10 × 122,639.40
  4. Step 4: Simplify right side
    227,615.40x = 41,871,924,130.14
  5. Step 5: Solve for x
    x = 41,871,924,130.14/227,615.40
  6. Step 6: Final answer
    x = 183,959.10

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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.