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Finding the Fourth Proportional to 292,630.16, 438,974.46 and 79,401.46

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Solution

The fourth proportional to 292,630.16, 438,974.46 and 79,401.46 is: 119,110.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,630.16 : 438,974.46 = 79,401.46 : x
  2. Step 2: Convert to fraction form
    292,630.16/438,974.46 = 79,401.46/x
  3. Step 3: Cross multiply
    292,630.16x = 438,974.46 × 79,401.46
  4. Step 4: Simplify right side
    292,630.16x = 34,855,213,026.71
  5. Step 5: Solve for x
    x = 34,855,213,026.71/292,630.16
  6. Step 6: Final answer
    x = 119,110.12

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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.