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Finding the Fourth Proportional to 162,643.75, 224,449.50 and 91,030.39

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Solution

The fourth proportional to 162,643.75, 224,449.50 and 91,030.39 is: 125,622.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,643.75 : 224,449.50 = 91,030.39 : x
  2. Step 2: Convert to fraction form
    162,643.75/224,449.50 = 91,030.39/x
  3. Step 3: Cross multiply
    162,643.75x = 224,449.50 × 91,030.39
  4. Step 4: Simplify right side
    162,643.75x = 20,431,725,520.31
  5. Step 5: Solve for x
    x = 20,431,725,520.31/162,643.75
  6. Step 6: Final answer
    x = 125,622.57

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1.5x scale

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.