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Finding the Fourth Proportional to 291,851.80, 402,754.62 and 157,715.80

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Solution

The fourth proportional to 291,851.80, 402,754.62 and 157,715.80 is: 217,647.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,851.80 : 402,754.62 = 157,715.80 : x
  2. Step 2: Convert to fraction form
    291,851.80/402,754.62 = 157,715.80/x
  3. Step 3: Cross multiply
    291,851.80x = 402,754.62 × 157,715.80
  4. Step 4: Simplify right side
    291,851.80x = 63,520,767,097.00
  5. Step 5: Solve for x
    x = 63,520,767,097.00/291,851.80
  6. Step 6: Final answer
    x = 217,647.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.