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Finding the Fourth Proportional to 121,256.56, 167,200.32 and 83,022.40

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Solution

The fourth proportional to 121,256.56, 167,200.32 and 83,022.40 is: 114,479.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,256.56 : 167,200.32 = 83,022.40 : x
  2. Step 2: Convert to fraction form
    121,256.56/167,200.32 = 83,022.40/x
  3. Step 3: Cross multiply
    121,256.56x = 167,200.32 × 83,022.40
  4. Step 4: Simplify right side
    121,256.56x = 13,881,371,847.17
  5. Step 5: Solve for x
    x = 13,881,371,847.17/121,256.56
  6. Step 6: Final answer
    x = 114,479.35

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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.