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Finding the Fourth Proportional to 77,007.99, 106,267.91 and 43,015.93

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Solution

The fourth proportional to 77,007.99, 106,267.91 and 43,015.93 is: 59,360.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,007.99 : 106,267.91 = 43,015.93 : x
  2. Step 2: Convert to fraction form
    77,007.99/106,267.91 = 43,015.93/x
  3. Step 3: Cross multiply
    77,007.99x = 106,267.91 × 43,015.93
  4. Step 4: Simplify right side
    77,007.99x = 4,571,212,977.81
  5. Step 5: Solve for x
    x = 4,571,212,977.81/77,007.99
  6. Step 6: Final answer
    x = 59,360.24

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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.