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Finding the Fourth Proportional to 117,364.80, 175,852.80 and 99,868.80

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Solution

The fourth proportional to 117,364.80, 175,852.80 and 99,868.80 is: 149,637.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,364.80 : 175,852.80 = 99,868.80 : x
  2. Step 2: Convert to fraction form
    117,364.80/175,852.80 = 99,868.80/x
  3. Step 3: Cross multiply
    117,364.80x = 175,852.80 × 99,868.80
  4. Step 4: Simplify right side
    117,364.80x = 17,562,208,112.64
  5. Step 5: Solve for x
    x = 17,562,208,112.64/117,364.80
  6. Step 6: Final answer
    x = 149,637.78

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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.