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Finding the Fourth Proportional to 126,538.54, 174,615.69 and 69,946.54

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Solution

The fourth proportional to 126,538.54, 174,615.69 and 69,946.54 is: 96,522.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,538.54 : 174,615.69 = 69,946.54 : x
  2. Step 2: Convert to fraction form
    126,538.54/174,615.69 = 69,946.54/x
  3. Step 3: Cross multiply
    126,538.54x = 174,615.69 × 69,946.54
  4. Step 4: Simplify right side
    126,538.54x = 12,213,763,345.21
  5. Step 5: Solve for x
    x = 12,213,763,345.21/126,538.54
  6. Step 6: Final answer
    x = 96,522.08

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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.