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Finding the Fourth Proportional to 124,298.40, 186,447.40 and 30,804.15

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Solution

The fourth proportional to 124,298.40, 186,447.40 and 30,804.15 is: 46,206.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,298.40 : 186,447.40 = 30,804.15 : x
  2. Step 2: Convert to fraction form
    124,298.40/186,447.40 = 30,804.15/x
  3. Step 3: Cross multiply
    124,298.40x = 186,447.40 × 30,804.15
  4. Step 4: Simplify right side
    124,298.40x = 5,743,353,676.71
  5. Step 5: Solve for x
    x = 5,743,353,676.71/124,298.40
  6. Step 6: Final answer
    x = 46,206.18

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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.