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Finding the Fourth Proportional to 318,095.48, 477,041.98 and 104,823.61

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Solution

The fourth proportional to 318,095.48, 477,041.98 and 104,823.61 is: 157,202.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,095.48 : 477,041.98 = 104,823.61 : x
  2. Step 2: Convert to fraction form
    318,095.48/477,041.98 = 104,823.61/x
  3. Step 3: Cross multiply
    318,095.48x = 477,041.98 × 104,823.61
  4. Step 4: Simplify right side
    318,095.48x = 50,005,262,465.15
  5. Step 5: Solve for x
    x = 50,005,262,465.15/318,095.48
  6. Step 6: Final answer
    x = 157,202.05

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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.