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Finding the Fourth Proportional to 252,030.60, 378,045.90 and 168,049.80

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Solution

The fourth proportional to 252,030.60, 378,045.90 and 168,049.80 is: 252,074.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,030.60 : 378,045.90 = 168,049.80 : x
  2. Step 2: Convert to fraction form
    252,030.60/378,045.90 = 168,049.80/x
  3. Step 3: Cross multiply
    252,030.60x = 378,045.90 × 168,049.80
  4. Step 4: Simplify right side
    252,030.60x = 63,530,537,885.82
  5. Step 5: Solve for x
    x = 63,530,537,885.82/252,030.60
  6. Step 6: Final answer
    x = 252,074.70

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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.