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Finding the Fourth Proportional to 121,047.44, 167,047.80 and 70,775.60

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Solution

The fourth proportional to 121,047.44, 167,047.80 and 70,775.60 is: 97,671.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,047.44 : 167,047.80 = 70,775.60 : x
  2. Step 2: Convert to fraction form
    121,047.44/167,047.80 = 70,775.60/x
  3. Step 3: Cross multiply
    121,047.44x = 167,047.80 × 70,775.60
  4. Step 4: Simplify right side
    121,047.44x = 11,822,908,273.68
  5. Step 5: Solve for x
    x = 11,822,908,273.68/121,047.44
  6. Step 6: Final answer
    x = 97,671.69

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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.