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Finding the Fourth Proportional to 157,051.44, 216,736.65 and 89,996.40

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Solution

The fourth proportional to 157,051.44, 216,736.65 and 89,996.40 is: 124,198.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,051.44 : 216,736.65 = 89,996.40 : x
  2. Step 2: Convert to fraction form
    157,051.44/216,736.65 = 89,996.40/x
  3. Step 3: Cross multiply
    157,051.44x = 216,736.65 × 89,996.40
  4. Step 4: Simplify right side
    157,051.44x = 19,505,518,248.06
  5. Step 5: Solve for x
    x = 19,505,518,248.06/157,051.44
  6. Step 6: Final answer
    x = 124,198.28

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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.