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Finding the Fourth Proportional to 342,678.51, 514,072.85 and 117,983.70

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Solution

The fourth proportional to 342,678.51, 514,072.85 and 117,983.70 is: 176,994.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,678.51 : 514,072.85 = 117,983.70 : x
  2. Step 2: Convert to fraction form
    342,678.51/514,072.85 = 117,983.70/x
  3. Step 3: Cross multiply
    342,678.51x = 514,072.85 × 117,983.70
  4. Step 4: Simplify right side
    342,678.51x = 60,652,216,322.63
  5. Step 5: Solve for x
    x = 60,652,216,322.63/342,678.51
  6. Step 6: Final answer
    x = 176,994.51

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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.