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Finding the Fourth Proportional to 151,507.44, 209,055.78 and 91,063.62

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Solution

The fourth proportional to 151,507.44, 209,055.78 and 91,063.62 is: 125,653.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,507.44 : 209,055.78 = 91,063.62 : x
  2. Step 2: Convert to fraction form
    151,507.44/209,055.78 = 91,063.62/x
  3. Step 3: Cross multiply
    151,507.44x = 209,055.78 × 91,063.62
  4. Step 4: Simplify right side
    151,507.44x = 19,037,376,108.72
  5. Step 5: Solve for x
    x = 19,037,376,108.72/151,507.44
  6. Step 6: Final answer
    x = 125,653.08

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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.