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Finding the Fourth Proportional to 162,643.33, 224,447.79 and 91,023.40

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Solution

The fourth proportional to 162,643.33, 224,447.79 and 91,023.40 is: 125,612.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,643.33 : 224,447.79 = 91,023.40 : x
  2. Step 2: Convert to fraction form
    162,643.33/224,447.79 = 91,023.40/x
  3. Step 3: Cross multiply
    162,643.33x = 224,447.79 × 91,023.40
  4. Step 4: Simplify right side
    162,643.33x = 20,430,000,968.29
  5. Step 5: Solve for x
    x = 20,430,000,968.29/162,643.33
  6. Step 6: Final answer
    x = 125,612.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.