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Finding the Fourth Proportional to 303,135.40, 418,329.76 and 167,174.16

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Solution

The fourth proportional to 303,135.40, 418,329.76 and 167,174.16 is: 230,701.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,135.40 : 418,329.76 = 167,174.16 : x
  2. Step 2: Convert to fraction form
    303,135.40/418,329.76 = 167,174.16/x
  3. Step 3: Cross multiply
    303,135.40x = 418,329.76 × 167,174.16
  4. Step 4: Simplify right side
    303,135.40x = 69,933,925,813.07
  5. Step 5: Solve for x
    x = 69,933,925,813.07/303,135.40
  6. Step 6: Final answer
    x = 230,701.95

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1.5x scale

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.