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Finding the Fourth Proportional to 318,020.96, 476,914.80 and 93,323.72

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Solution

The fourth proportional to 318,020.96, 476,914.80 and 93,323.72 is: 139,951.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,020.96 : 476,914.80 = 93,323.72 : x
  2. Step 2: Convert to fraction form
    318,020.96/476,914.80 = 93,323.72/x
  3. Step 3: Cross multiply
    318,020.96x = 476,914.80 × 93,323.72
  4. Step 4: Simplify right side
    318,020.96x = 44,507,463,259.06
  5. Step 5: Solve for x
    x = 44,507,463,259.06/318,020.96
  6. Step 6: Final answer
    x = 139,951.35

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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.