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Finding the Fourth Proportional to 273,853.40, 377,880.30 and 152,979.74

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Solution

The fourth proportional to 273,853.40, 377,880.30 and 152,979.74 is: 211,091.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,853.40 : 377,880.30 = 152,979.74 : x
  2. Step 2: Convert to fraction form
    273,853.40/377,880.30 = 152,979.74/x
  3. Step 3: Cross multiply
    273,853.40x = 377,880.30 × 152,979.74
  4. Step 4: Simplify right side
    273,853.40x = 57,808,030,045.12
  5. Step 5: Solve for x
    x = 57,808,030,045.12/273,853.40
  6. Step 6: Final answer
    x = 211,091.15

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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.