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Finding the Fourth Proportional to 318,182.64, 439,080.81 and 174,941.57

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Solution

The fourth proportional to 318,182.64, 439,080.81 and 174,941.57 is: 241,413.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,182.64 : 439,080.81 = 174,941.57 : x
  2. Step 2: Convert to fraction form
    318,182.64/439,080.81 = 174,941.57/x
  3. Step 3: Cross multiply
    318,182.64x = 439,080.81 × 174,941.57
  4. Step 4: Simplify right side
    318,182.64x = 76,813,484,062.87
  5. Step 5: Solve for x
    x = 76,813,484,062.87/318,182.64
  6. Step 6: Final answer
    x = 241,413.18

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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.