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Finding the Fourth Proportional to 157,766.94, 236,463.12 and 91,069.08

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Solution

The fourth proportional to 157,766.94, 236,463.12 and 91,069.08 is: 136,495.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,766.94 : 236,463.12 = 91,069.08 : x
  2. Step 2: Convert to fraction form
    157,766.94/236,463.12 = 91,069.08/x
  3. Step 3: Cross multiply
    157,766.94x = 236,463.12 × 91,069.08
  4. Step 4: Simplify right side
    157,766.94x = 21,534,478,792.33
  5. Step 5: Solve for x
    x = 21,534,478,792.33/157,766.94
  6. Step 6: Final answer
    x = 136,495.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.