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Finding the Fourth Proportional to 318,368.22, 477,387.96 and 93,699.46

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Solution

The fourth proportional to 318,368.22, 477,387.96 and 93,699.46 is: 140,500.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,368.22 : 477,387.96 = 93,699.46 : x
  2. Step 2: Convert to fraction form
    318,368.22/477,387.96 = 93,699.46/x
  3. Step 3: Cross multiply
    318,368.22x = 477,387.96 × 93,699.46
  4. Step 4: Simplify right side
    318,368.22x = 44,730,994,062.50
  5. Step 5: Solve for x
    x = 44,730,994,062.50/318,368.22
  6. Step 6: Final answer
    x = 140,500.81

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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.