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Finding the Fourth Proportional to 212,526.65, 318,863.79 and 94,281.03

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Solution

The fourth proportional to 212,526.65, 318,863.79 and 94,281.03 is: 141,454.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,526.65 : 318,863.79 = 94,281.03 : x
  2. Step 2: Convert to fraction form
    212,526.65/318,863.79 = 94,281.03/x
  3. Step 3: Cross multiply
    212,526.65x = 318,863.79 × 94,281.03
  4. Step 4: Simplify right side
    212,526.65x = 30,062,806,550.90
  5. Step 5: Solve for x
    x = 30,062,806,550.90/212,526.65
  6. Step 6: Final answer
    x = 141,454.29

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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.