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Finding the Fourth Proportional to 111,634.30, 154,056.13 and 60,647.47

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Solution

The fourth proportional to 111,634.30, 154,056.13 and 60,647.47 is: 83,693.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,634.30 : 154,056.13 = 60,647.47 : x
  2. Step 2: Convert to fraction form
    111,634.30/154,056.13 = 60,647.47/x
  3. Step 3: Cross multiply
    111,634.30x = 154,056.13 × 60,647.47
  4. Step 4: Simplify right side
    111,634.30x = 9,343,113,985.73
  5. Step 5: Solve for x
    x = 9,343,113,985.73/111,634.30
  6. Step 6: Final answer
    x = 83,693.94

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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.