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Finding the Fourth Proportional to 158,699.84, 219,004.96 and 89,792.32

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Solution

The fourth proportional to 158,699.84, 219,004.96 and 89,792.32 is: 123,912.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,699.84 : 219,004.96 = 89,792.32 : x
  2. Step 2: Convert to fraction form
    158,699.84/219,004.96 = 89,792.32/x
  3. Step 3: Cross multiply
    158,699.84x = 219,004.96 × 89,792.32
  4. Step 4: Simplify right side
    158,699.84x = 19,664,963,449.91
  5. Step 5: Solve for x
    x = 19,664,963,449.91/158,699.84
  6. Step 6: Final answer
    x = 123,912.94

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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.