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Finding the Fourth Proportional to 202,901.40, 304,279.20 and 103,028.40

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Solution

The fourth proportional to 202,901.40, 304,279.20 and 103,028.40 is: 154,505.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,901.40 : 304,279.20 = 103,028.40 : x
  2. Step 2: Convert to fraction form
    202,901.40/304,279.20 = 103,028.40/x
  3. Step 3: Cross multiply
    202,901.40x = 304,279.20 × 103,028.40
  4. Step 4: Simplify right side
    202,901.40x = 31,349,399,129.28
  5. Step 5: Solve for x
    x = 31,349,399,129.28/202,901.40
  6. Step 6: Final answer
    x = 154,505.58

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1.5x scale

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.