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Finding the Fourth Proportional to 157,876.09, 217,858.55 and 89,900.01

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Solution

The fourth proportional to 157,876.09, 217,858.55 and 89,900.01 is: 124,056.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,876.09 : 217,858.55 = 89,900.01 : x
  2. Step 2: Convert to fraction form
    157,876.09/217,858.55 = 89,900.01/x
  3. Step 3: Cross multiply
    157,876.09x = 217,858.55 × 89,900.01
  4. Step 4: Simplify right side
    157,876.09x = 19,585,485,374.09
  5. Step 5: Solve for x
    x = 19,585,485,374.09/157,876.09
  6. Step 6: Final answer
    x = 124,056.06

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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.