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Finding the Fourth Proportional to 77,971.93, 107,595.06 and 43,969.51

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Solution

The fourth proportional to 77,971.93, 107,595.06 and 43,969.51 is: 60,674.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,971.93 : 107,595.06 = 43,969.51 : x
  2. Step 2: Convert to fraction form
    77,971.93/107,595.06 = 43,969.51/x
  3. Step 3: Cross multiply
    77,971.93x = 107,595.06 × 43,969.51
  4. Step 4: Simplify right side
    77,971.93x = 4,730,902,066.62
  5. Step 5: Solve for x
    x = 4,730,902,066.62/77,971.93
  6. Step 6: Final answer
    x = 60,674.43

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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.