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Finding the Fourth Proportional to 185,878.56, 278,788.56 and 154,490.16

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Solution

The fourth proportional to 185,878.56, 278,788.56 and 154,490.16 is: 231,710.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,878.56 : 278,788.56 = 154,490.16 : x
  2. Step 2: Convert to fraction form
    185,878.56/278,788.56 = 154,490.16/x
  3. Step 3: Cross multiply
    185,878.56x = 278,788.56 × 154,490.16
  4. Step 4: Simplify right side
    185,878.56x = 43,070,089,240.57
  5. Step 5: Solve for x
    x = 43,070,089,240.57/185,878.56
  6. Step 6: Final answer
    x = 231,710.90

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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.