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Finding the Fourth Proportional to 203,253.48, 304,880.40 and 84,860.28

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Solution

The fourth proportional to 203,253.48, 304,880.40 and 84,860.28 is: 127,290.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,253.48 : 304,880.40 = 84,860.28 : x
  2. Step 2: Convert to fraction form
    203,253.48/304,880.40 = 84,860.28/x
  3. Step 3: Cross multiply
    203,253.48x = 304,880.40 × 84,860.28
  4. Step 4: Simplify right side
    203,253.48x = 25,872,236,110.51
  5. Step 5: Solve for x
    x = 25,872,236,110.51/203,253.48
  6. Step 6: Final answer
    x = 127,290.50

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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.