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Finding the Fourth Proportional to 314,653.64, 434,253.36 and 192,139.25

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Solution

The fourth proportional to 314,653.64, 434,253.36 and 192,139.25 is: 265,171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,653.64 : 434,253.36 = 192,139.25 : x
  2. Step 2: Convert to fraction form
    314,653.64/434,253.36 = 192,139.25/x
  3. Step 3: Cross multiply
    314,653.64x = 434,253.36 × 192,139.25
  4. Step 4: Simplify right side
    314,653.64x = 83,437,112,729.11
  5. Step 5: Solve for x
    x = 83,437,112,729.11/314,653.64
  6. Step 6: Final answer
    x = 265,171.30

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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.