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Finding the Fourth Proportional to 374,047.30, 561,423.30 and 196,681.60

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Solution

The fourth proportional to 374,047.30, 561,423.30 and 196,681.60 is: 295,207.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,047.30 : 561,423.30 = 196,681.60 : x
  2. Step 2: Convert to fraction form
    374,047.30/561,423.30 = 196,681.60/x
  3. Step 3: Cross multiply
    374,047.30x = 561,423.30 × 196,681.60
  4. Step 4: Simplify right side
    374,047.30x = 110,421,632,921.28
  5. Step 5: Solve for x
    x = 110,421,632,921.28/374,047.30
  6. Step 6: Final answer
    x = 295,207.67

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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.