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Finding the Fourth Proportional to 292,604.34, 438,906.52 and 70,988.34

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Solution

The fourth proportional to 292,604.34, 438,906.52 and 70,988.34 is: 106,482.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,604.34 : 438,906.52 = 70,988.34 : x
  2. Step 2: Convert to fraction form
    292,604.34/438,906.52 = 70,988.34/x
  3. Step 3: Cross multiply
    292,604.34x = 438,906.52 × 70,988.34
  4. Step 4: Simplify right side
    292,604.34x = 31,157,246,605.30
  5. Step 5: Solve for x
    x = 31,157,246,605.30/292,604.34
  6. Step 6: Final answer
    x = 106,482.52

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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.