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Finding the Fourth Proportional to 113,918.94, 157,207.50 and 66,200.22

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Solution

The fourth proportional to 113,918.94, 157,207.50 and 66,200.22 is: 91,355.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,918.94 : 157,207.50 = 66,200.22 : x
  2. Step 2: Convert to fraction form
    113,918.94/157,207.50 = 66,200.22/x
  3. Step 3: Cross multiply
    113,918.94x = 157,207.50 × 66,200.22
  4. Step 4: Simplify right side
    113,918.94x = 10,407,171,085.65
  5. Step 5: Solve for x
    x = 10,407,171,085.65/113,918.94
  6. Step 6: Final answer
    x = 91,355.93

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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.