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Finding the Fourth Proportional to 291,951.71, 402,893.67 and 171,068.93

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Solution

The fourth proportional to 291,951.71, 402,893.67 and 171,068.93 is: 236,075.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,951.71 : 402,893.67 = 171,068.93 : x
  2. Step 2: Convert to fraction form
    291,951.71/402,893.67 = 171,068.93/x
  3. Step 3: Cross multiply
    291,951.71x = 402,893.67 × 171,068.93
  4. Step 4: Simplify right side
    291,951.71x = 68,922,589,030.67
  5. Step 5: Solve for x
    x = 68,922,589,030.67/291,951.71
  6. Step 6: Final answer
    x = 236,075.31

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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.