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Finding the Fourth Proportional to 103,281.82, 154,798.12 and 53,334.67

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Solution

The fourth proportional to 103,281.82, 154,798.12 and 53,334.67 is: 79,937.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,281.82 : 154,798.12 = 53,334.67 : x
  2. Step 2: Convert to fraction form
    103,281.82/154,798.12 = 53,334.67/x
  3. Step 3: Cross multiply
    103,281.82x = 154,798.12 × 53,334.67
  4. Step 4: Simplify right side
    103,281.82x = 8,256,106,646.82
  5. Step 5: Solve for x
    x = 8,256,106,646.82/103,281.82
  6. Step 6: Final answer
    x = 79,937.66

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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.