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Finding the Fourth Proportional to 77,349.66, 106,749.05 and 43,357.60

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Solution

The fourth proportional to 77,349.66, 106,749.05 and 43,357.60 is: 59,837.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,349.66 : 106,749.05 = 43,357.60 : x
  2. Step 2: Convert to fraction form
    77,349.66/106,749.05 = 43,357.60/x
  3. Step 3: Cross multiply
    77,349.66x = 106,749.05 × 43,357.60
  4. Step 4: Simplify right side
    77,349.66x = 4,628,382,610.28
  5. Step 5: Solve for x
    x = 4,628,382,610.28/77,349.66
  6. Step 6: Final answer
    x = 59,837.14

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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.