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Finding the Fourth Proportional to 113,431.80, 170,074.80 and 46,898.40

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Solution

The fourth proportional to 113,431.80, 170,074.80 and 46,898.40 is: 70,317.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,431.80 : 170,074.80 = 46,898.40 : x
  2. Step 2: Convert to fraction form
    113,431.80/170,074.80 = 46,898.40/x
  3. Step 3: Cross multiply
    113,431.80x = 170,074.80 × 46,898.40
  4. Step 4: Simplify right side
    113,431.80x = 7,976,236,000.32
  5. Step 5: Solve for x
    x = 7,976,236,000.32/113,431.80
  6. Step 6: Final answer
    x = 70,317.46

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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.