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Finding the Fourth Proportional to 346,728.72, 520,055.80 and 235,125.30

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Solution

The fourth proportional to 346,728.72, 520,055.80 and 235,125.30 is: 352,662.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,728.72 : 520,055.80 = 235,125.30 : x
  2. Step 2: Convert to fraction form
    346,728.72/520,055.80 = 235,125.30/x
  3. Step 3: Cross multiply
    346,728.72x = 520,055.80 × 235,125.30
  4. Step 4: Simplify right side
    346,728.72x = 122,278,275,991.74
  5. Step 5: Solve for x
    x = 122,278,275,991.74/346,728.72
  6. Step 6: Final answer
    x = 352,662.67

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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.