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Finding the Fourth Proportional to 342,903.61, 473,190.54 and 189,931.48

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Solution

The fourth proportional to 342,903.61, 473,190.54 and 189,931.48 is: 262,096.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,903.61 : 473,190.54 = 189,931.48 : x
  2. Step 2: Convert to fraction form
    342,903.61/473,190.54 = 189,931.48/x
  3. Step 3: Cross multiply
    342,903.61x = 473,190.54 × 189,931.48
  4. Step 4: Simplify right side
    342,903.61x = 89,873,779,584.20
  5. Step 5: Solve for x
    x = 89,873,779,584.20/342,903.61
  6. Step 6: Final answer
    x = 262,096.34

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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.