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Finding the Fourth Proportional to 107,579.16, 161,368.74 and 28,693.71

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Solution

The fourth proportional to 107,579.16, 161,368.74 and 28,693.71 is: 43,040.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,579.16 : 161,368.74 = 28,693.71 : x
  2. Step 2: Convert to fraction form
    107,579.16/161,368.74 = 28,693.71/x
  3. Step 3: Cross multiply
    107,579.16x = 161,368.74 × 28,693.71
  4. Step 4: Simplify right side
    107,579.16x = 4,630,267,828.63
  5. Step 5: Solve for x
    x = 4,630,267,828.63/107,579.16
  6. Step 6: Final answer
    x = 43,040.57

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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.