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Finding the Fourth Proportional to 342,860.16, 473,136.56 and 189,892.28

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Solution

The fourth proportional to 342,860.16, 473,136.56 and 189,892.28 is: 262,045.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,860.16 : 473,136.56 = 189,892.28 : x
  2. Step 2: Convert to fraction form
    342,860.16/473,136.56 = 189,892.28/x
  3. Step 3: Cross multiply
    342,860.16x = 473,136.56 × 189,892.28
  4. Step 4: Simplify right side
    342,860.16x = 89,844,980,129.76
  5. Step 5: Solve for x
    x = 89,844,980,129.76/342,860.16
  6. Step 6: Final answer
    x = 262,045.55

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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.