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Finding the Fourth Proportional to 121,483.56, 167,646.14 and 67,036.20

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Solution

The fourth proportional to 121,483.56, 167,646.14 and 67,036.20 is: 92,509.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,483.56 : 167,646.14 = 67,036.20 : x
  2. Step 2: Convert to fraction form
    121,483.56/167,646.14 = 67,036.20/x
  3. Step 3: Cross multiply
    121,483.56x = 167,646.14 × 67,036.20
  4. Step 4: Simplify right side
    121,483.56x = 11,238,360,170.27
  5. Step 5: Solve for x
    x = 11,238,360,170.27/121,483.56
  6. Step 6: Final answer
    x = 92,509.31

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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.