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Finding the Fourth Proportional to 128,094.01, 176,768.73 and 70,736.90

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Solution

The fourth proportional to 128,094.01, 176,768.73 and 70,736.90 is: 97,616.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,094.01 : 176,768.73 = 70,736.90 : x
  2. Step 2: Convert to fraction form
    128,094.01/176,768.73 = 70,736.90/x
  3. Step 3: Cross multiply
    128,094.01x = 176,768.73 × 70,736.90
  4. Step 4: Simplify right side
    128,094.01x = 12,504,071,093.29
  5. Step 5: Solve for x
    x = 12,504,071,093.29/128,094.01
  6. Step 6: Final answer
    x = 97,616.36

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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.