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Finding the Fourth Proportional to 253,886.40, 350,400.53 and 146,435.45

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Solution

The fourth proportional to 253,886.40, 350,400.53 and 146,435.45 is: 202,102.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,886.40 : 350,400.53 = 146,435.45 : x
  2. Step 2: Convert to fraction form
    253,886.40/350,400.53 = 146,435.45/x
  3. Step 3: Cross multiply
    253,886.40x = 350,400.53 × 146,435.45
  4. Step 4: Simplify right side
    253,886.40x = 51,311,057,904.87
  5. Step 5: Solve for x
    x = 51,311,057,904.87/253,886.40
  6. Step 6: Final answer
    x = 202,102.43

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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.