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Finding the Fourth Proportional to 255,395.55, 382,830.46 and 113,307.74

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Solution

The fourth proportional to 255,395.55, 382,830.46 and 113,307.74 is: 169,844.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,395.55 : 382,830.46 = 113,307.74 : x
  2. Step 2: Convert to fraction form
    255,395.55/382,830.46 = 113,307.74/x
  3. Step 3: Cross multiply
    255,395.55x = 382,830.46 × 113,307.74
  4. Step 4: Simplify right side
    255,395.55x = 43,377,652,311.61
  5. Step 5: Solve for x
    x = 43,377,652,311.61/255,395.55
  6. Step 6: Final answer
    x = 169,844.98

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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.