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Finding the Fourth Proportional to 605,123.55, 907,783.83 and 178,702.50

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Solution

The fourth proportional to 605,123.55, 907,783.83 and 178,702.50 is: 268,082.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,123.55 : 907,783.83 = 178,702.50 : x
  2. Step 2: Convert to fraction form
    605,123.55/907,783.83 = 178,702.50/x
  3. Step 3: Cross multiply
    605,123.55x = 907,783.83 × 178,702.50
  4. Step 4: Simplify right side
    605,123.55x = 162,223,239,880.58
  5. Step 5: Solve for x
    x = 162,223,239,880.58/605,123.55
  6. Step 6: Final answer
    x = 268,082.84

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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.