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Finding the Fourth Proportional to 278,334.41, 384,101.51 and 151,010.01

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Solution

The fourth proportional to 278,334.41, 384,101.51 and 151,010.01 is: 208,393.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,334.41 : 384,101.51 = 151,010.01 : x
  2. Step 2: Convert to fraction form
    278,334.41/384,101.51 = 151,010.01/x
  3. Step 3: Cross multiply
    278,334.41x = 384,101.51 × 151,010.01
  4. Step 4: Simplify right side
    278,334.41x = 58,003,172,111.07
  5. Step 5: Solve for x
    x = 58,003,172,111.07/278,334.41
  6. Step 6: Final answer
    x = 208,393.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.