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Finding the Fourth Proportional to 326,806.59, 490,070.57 and 124,368.15

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Solution

The fourth proportional to 326,806.59, 490,070.57 and 124,368.15 is: 186,499.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,806.59 : 490,070.57 = 124,368.15 : x
  2. Step 2: Convert to fraction form
    326,806.59/490,070.57 = 124,368.15/x
  3. Step 3: Cross multiply
    326,806.59x = 490,070.57 × 124,368.15
  4. Step 4: Simplify right side
    326,806.59x = 60,949,169,538.50
  5. Step 5: Solve for x
    x = 60,949,169,538.50/326,806.59
  6. Step 6: Final answer
    x = 186,499.21

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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.