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Finding the Fourth Proportional to 86,075.92, 118,802.46 and 54,223.48

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Solution

The fourth proportional to 86,075.92, 118,802.46 and 54,223.48 is: 74,839.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,075.92 : 118,802.46 = 54,223.48 : x
  2. Step 2: Convert to fraction form
    86,075.92/118,802.46 = 54,223.48/x
  3. Step 3: Cross multiply
    86,075.92x = 118,802.46 × 54,223.48
  4. Step 4: Simplify right side
    86,075.92x = 6,441,882,813.76
  5. Step 5: Solve for x
    x = 6,441,882,813.76/86,075.92
  6. Step 6: Final answer
    x = 74,839.55

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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.