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Finding the Fourth Proportional to 103,693.48, 154,731.09 and 92,523.24

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Solution

The fourth proportional to 103,693.48, 154,731.09 and 92,523.24 is: 138,062.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,693.48 : 154,731.09 = 92,523.24 : x
  2. Step 2: Convert to fraction form
    103,693.48/154,731.09 = 92,523.24/x
  3. Step 3: Cross multiply
    103,693.48x = 154,731.09 × 92,523.24
  4. Step 4: Simplify right side
    103,693.48x = 14,316,221,775.53
  5. Step 5: Solve for x
    x = 14,316,221,775.53/103,693.48
  6. Step 6: Final answer
    x = 138,062.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.