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Finding the Fourth Proportional to 119,303.98, 178,965.10 and 39,310.80

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Solution

The fourth proportional to 119,303.98, 178,965.10 and 39,310.80 is: 58,969.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,303.98 : 178,965.10 = 39,310.80 : x
  2. Step 2: Convert to fraction form
    119,303.98/178,965.10 = 39,310.80/x
  3. Step 3: Cross multiply
    119,303.98x = 178,965.10 × 39,310.80
  4. Step 4: Simplify right side
    119,303.98x = 7,035,261,253.08
  5. Step 5: Solve for x
    x = 7,035,261,253.08/119,303.98
  6. Step 6: Final answer
    x = 58,969.21

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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.