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Finding the Fourth Proportional to 167,913.80, 251,870.70 and 118,050.20

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Solution

The fourth proportional to 167,913.80, 251,870.70 and 118,050.20 is: 177,075.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,913.80 : 251,870.70 = 118,050.20 : x
  2. Step 2: Convert to fraction form
    167,913.80/251,870.70 = 118,050.20/x
  3. Step 3: Cross multiply
    167,913.80x = 251,870.70 × 118,050.20
  4. Step 4: Simplify right side
    167,913.80x = 29,733,386,509.14
  5. Step 5: Solve for x
    x = 29,733,386,509.14/167,913.80
  6. Step 6: Final answer
    x = 177,075.30

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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.