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Finding the Fourth Proportional to 187,219.70, 280,829.55 and 134,075.60

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Solution

The fourth proportional to 187,219.70, 280,829.55 and 134,075.60 is: 201,113.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,219.70 : 280,829.55 = 134,075.60 : x
  2. Step 2: Convert to fraction form
    187,219.70/280,829.55 = 134,075.60/x
  3. Step 3: Cross multiply
    187,219.70x = 280,829.55 × 134,075.60
  4. Step 4: Simplify right side
    187,219.70x = 37,652,390,413.98
  5. Step 5: Solve for x
    x = 37,652,390,413.98/187,219.70
  6. Step 6: Final answer
    x = 201,113.40

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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.