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Finding the Fourth Proportional to 94,213.65, 130,020.66 and 53,926.50

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Solution

The fourth proportional to 94,213.65, 130,020.66 and 53,926.50 is: 74,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,213.65 : 130,020.66 = 53,926.50 : x
  2. Step 2: Convert to fraction form
    94,213.65/130,020.66 = 53,926.50/x
  3. Step 3: Cross multiply
    94,213.65x = 130,020.66 × 53,926.50
  4. Step 4: Simplify right side
    94,213.65x = 7,011,559,121.49
  5. Step 5: Solve for x
    x = 7,011,559,121.49/94,213.65
  6. Step 6: Final answer
    x = 74,421.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.