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Finding the Fourth Proportional to 173,586.80, 260,315.40 and 61,223.60

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Solution

The fourth proportional to 173,586.80, 260,315.40 and 61,223.60 is: 91,812.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,586.80 : 260,315.40 = 61,223.60 : x
  2. Step 2: Convert to fraction form
    173,586.80/260,315.40 = 61,223.60/x
  3. Step 3: Cross multiply
    173,586.80x = 260,315.40 × 61,223.60
  4. Step 4: Simplify right side
    173,586.80x = 15,937,445,923.44
  5. Step 5: Solve for x
    x = 15,937,445,923.44/173,586.80
  6. Step 6: Final answer
    x = 91,812.55

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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.