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Finding the Fourth Proportional to 292,729, 439,094.58 and 71,113

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Solution

The fourth proportional to 292,729, 439,094.58 and 71,113 is: 106,669.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,729 : 439,094.58 = 71,113 : x
  2. Step 2: Convert to fraction form
    292,729/439,094.58 = 71,113/x
  3. Step 3: Cross multiply
    292,729x = 439,094.58 × 71,113
  4. Step 4: Simplify right side
    292,729x = 31,225,332,867.54
  5. Step 5: Solve for x
    x = 31,225,332,867.54/292,729
  6. Step 6: Final answer
    x = 106,669.76

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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.