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Finding the Fourth Proportional to 121,295.96, 167,388.56 and 70,338.30

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Solution

The fourth proportional to 121,295.96, 167,388.56 and 70,338.30 is: 97,066.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,295.96 : 167,388.56 = 70,338.30 : x
  2. Step 2: Convert to fraction form
    121,295.96/167,388.56 = 70,338.30/x
  3. Step 3: Cross multiply
    121,295.96x = 167,388.56 × 70,338.30
  4. Step 4: Simplify right side
    121,295.96x = 11,773,827,025.79
  5. Step 5: Solve for x
    x = 11,773,827,025.79/121,295.96
  6. Step 6: Final answer
    x = 97,066.94

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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.