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Finding the Fourth Proportional to 262,034.72, 393,052.08 and 65,042.72

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Solution

The fourth proportional to 262,034.72, 393,052.08 and 65,042.72 is: 97,564.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,034.72 : 393,052.08 = 65,042.72 : x
  2. Step 2: Convert to fraction form
    262,034.72/393,052.08 = 65,042.72/x
  3. Step 3: Cross multiply
    262,034.72x = 393,052.08 × 65,042.72
  4. Step 4: Simplify right side
    262,034.72x = 25,565,176,384.86
  5. Step 5: Solve for x
    x = 25,565,176,384.86/262,034.72
  6. Step 6: Final answer
    x = 97,564.08

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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.