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Finding the Fourth Proportional to 318,374.61, 477,561.91 and 93,735.08

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Solution

The fourth proportional to 318,374.61, 477,561.91 and 93,735.08 is: 140,602.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,374.61 : 477,561.91 = 93,735.08 : x
  2. Step 2: Convert to fraction form
    318,374.61/477,561.91 = 93,735.08/x
  3. Step 3: Cross multiply
    318,374.61x = 477,561.91 × 93,735.08
  4. Step 4: Simplify right side
    318,374.61x = 44,764,303,838.80
  5. Step 5: Solve for x
    x = 44,764,303,838.80/318,374.61
  6. Step 6: Final answer
    x = 140,602.62

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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.