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Finding the Fourth Proportional to 176,309.40, 263,880.90 and 155,314.20

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Solution

The fourth proportional to 176,309.40, 263,880.90 and 155,314.20 is: 232,457.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,309.40 : 263,880.90 = 155,314.20 : x
  2. Step 2: Convert to fraction form
    176,309.40/263,880.90 = 155,314.20/x
  3. Step 3: Cross multiply
    176,309.40x = 263,880.90 × 155,314.20
  4. Step 4: Simplify right side
    176,309.40x = 40,984,450,878.78
  5. Step 5: Solve for x
    x = 40,984,450,878.78/176,309.40
  6. Step 6: Final answer
    x = 232,457.55

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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.