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Finding the Fourth Proportional to 121,477.54, 167,637.87 and 67,030.20

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Solution

The fourth proportional to 121,477.54, 167,637.87 and 67,030.20 is: 92,501.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,477.54 : 167,637.87 = 67,030.20 : x
  2. Step 2: Convert to fraction form
    121,477.54/167,637.87 = 67,030.20/x
  3. Step 3: Cross multiply
    121,477.54x = 167,637.87 × 67,030.20
  4. Step 4: Simplify right side
    121,477.54x = 11,236,799,953.67
  5. Step 5: Solve for x
    x = 11,236,799,953.67/121,477.54
  6. Step 6: Final answer
    x = 92,501.05

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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.