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Finding the Fourth Proportional to 318,301.14, 476,810.64 and 147,281.84

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Solution

The fourth proportional to 318,301.14, 476,810.64 and 147,281.84 is: 220,626.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,301.14 : 476,810.64 = 147,281.84 : x
  2. Step 2: Convert to fraction form
    318,301.14/476,810.64 = 147,281.84/x
  3. Step 3: Cross multiply
    318,301.14x = 476,810.64 × 147,281.84
  4. Step 4: Simplify right side
    318,301.14x = 70,225,548,390.78
  5. Step 5: Solve for x
    x = 70,225,548,390.78/318,301.14
  6. Step 6: Final answer
    x = 220,626.13

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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.