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Finding the Fourth Proportional to 284,607.34, 392,766.26 and 155,552.98

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Solution

The fourth proportional to 284,607.34, 392,766.26 and 155,552.98 is: 214,667.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,607.34 : 392,766.26 = 155,552.98 : x
  2. Step 2: Convert to fraction form
    284,607.34/392,766.26 = 155,552.98/x
  3. Step 3: Cross multiply
    284,607.34x = 392,766.26 × 155,552.98
  4. Step 4: Simplify right side
    284,607.34x = 61,095,962,186.45
  5. Step 5: Solve for x
    x = 61,095,962,186.45/284,607.34
  6. Step 6: Final answer
    x = 214,667.56

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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.