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Finding the Fourth Proportional to 369,423.78, 554,135.94 and 88,941.06

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Solution

The fourth proportional to 369,423.78, 554,135.94 and 88,941.06 is: 133,411.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,423.78 : 554,135.94 = 88,941.06 : x
  2. Step 2: Convert to fraction form
    369,423.78/554,135.94 = 88,941.06/x
  3. Step 3: Cross multiply
    369,423.78x = 554,135.94 × 88,941.06
  4. Step 4: Simplify right side
    369,423.78x = 49,285,437,887.70
  5. Step 5: Solve for x
    x = 49,285,437,887.70/369,423.78
  6. Step 6: Final answer
    x = 133,411.66

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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.