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Finding the Fourth Proportional to 77,751.90, 116,606.28 and 33,368.78

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Solution

The fourth proportional to 77,751.90, 116,606.28 and 33,368.78 is: 50,043.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,751.90 : 116,606.28 = 33,368.78 : x
  2. Step 2: Convert to fraction form
    77,751.90/116,606.28 = 33,368.78/x
  3. Step 3: Cross multiply
    77,751.90x = 116,606.28 × 33,368.78
  4. Step 4: Simplify right side
    77,751.90x = 3,891,009,303.94
  5. Step 5: Solve for x
    x = 3,891,009,303.94/77,751.90
  6. Step 6: Final answer
    x = 50,043.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.