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Finding the Fourth Proportional to 163,810.90, 245,716.20 and 45,482.20

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Solution

The fourth proportional to 163,810.90, 245,716.20 and 45,482.20 is: 68,223.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,810.90 : 245,716.20 = 45,482.20 : x
  2. Step 2: Convert to fraction form
    163,810.90/245,716.20 = 45,482.20/x
  3. Step 3: Cross multiply
    163,810.90x = 245,716.20 × 45,482.20
  4. Step 4: Simplify right side
    163,810.90x = 11,175,713,351.64
  5. Step 5: Solve for x
    x = 11,175,713,351.64/163,810.90
  6. Step 6: Final answer
    x = 68,223.26

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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.