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Finding the Fourth Proportional to 208,050.10, 312,075.15 and 187,054.90

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Solution

The fourth proportional to 208,050.10, 312,075.15 and 187,054.90 is: 280,582.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,050.10 : 312,075.15 = 187,054.90 : x
  2. Step 2: Convert to fraction form
    208,050.10/312,075.15 = 187,054.90/x
  3. Step 3: Cross multiply
    208,050.10x = 312,075.15 × 187,054.90
  4. Step 4: Simplify right side
    208,050.10x = 58,375,185,975.74
  5. Step 5: Solve for x
    x = 58,375,185,975.74/208,050.10
  6. Step 6: Final answer
    x = 280,582.35

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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.