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Finding the Fourth Proportional to 292,530.89, 438,796.38 and 70,914.89

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Solution

The fourth proportional to 292,530.89, 438,796.38 and 70,914.89 is: 106,372.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,530.89 : 438,796.38 = 70,914.89 : x
  2. Step 2: Convert to fraction form
    292,530.89/438,796.38 = 70,914.89/x
  3. Step 3: Cross multiply
    292,530.89x = 438,796.38 × 70,914.89
  4. Step 4: Simplify right side
    292,530.89x = 31,117,197,020.10
  5. Step 5: Solve for x
    x = 31,117,197,020.10/292,530.89
  6. Step 6: Final answer
    x = 106,372.35

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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.