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Finding the Fourth Proportional to 318,060.92, 438,925.02 and 174,835.64

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Solution

The fourth proportional to 318,060.92, 438,925.02 and 174,835.64 is: 241,273.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,060.92 : 438,925.02 = 174,835.64 : x
  2. Step 2: Convert to fraction form
    318,060.92/438,925.02 = 174,835.64/x
  3. Step 3: Cross multiply
    318,060.92x = 438,925.02 × 174,835.64
  4. Step 4: Simplify right side
    318,060.92x = 76,739,736,783.71
  5. Step 5: Solve for x
    x = 76,739,736,783.71/318,060.92
  6. Step 6: Final answer
    x = 241,273.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.