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Finding the Fourth Proportional to 325,290.63, 487,968.95 and 112,030.69

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Solution

The fourth proportional to 325,290.63, 487,968.95 and 112,030.69 is: 168,057.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,290.63 : 487,968.95 = 112,030.69 : x
  2. Step 2: Convert to fraction form
    325,290.63/487,968.95 = 112,030.69/x
  3. Step 3: Cross multiply
    325,290.63x = 487,968.95 × 112,030.69
  4. Step 4: Simplify right side
    325,290.63x = 54,667,498,167.08
  5. Step 5: Solve for x
    x = 54,667,498,167.08/325,290.63
  6. Step 6: Final answer
    x = 168,057.40

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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.