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Finding the Fourth Proportional to 413,483.39, 620,113.06 and 113,892.72

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Solution

The fourth proportional to 413,483.39, 620,113.06 and 113,892.72 is: 170,808.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,483.39 : 620,113.06 = 113,892.72 : x
  2. Step 2: Convert to fraction form
    413,483.39/620,113.06 = 113,892.72/x
  3. Step 3: Cross multiply
    413,483.39x = 620,113.06 × 113,892.72
  4. Step 4: Simplify right side
    413,483.39x = 70,626,360,927.87
  5. Step 5: Solve for x
    x = 70,626,360,927.87/413,483.39
  6. Step 6: Final answer
    x = 170,808.22

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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.