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Finding the Fourth Proportional to 202,948.40, 304,422.60 and 92,140.40

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Solution

The fourth proportional to 202,948.40, 304,422.60 and 92,140.40 is: 138,210.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,948.40 : 304,422.60 = 92,140.40 : x
  2. Step 2: Convert to fraction form
    202,948.40/304,422.60 = 92,140.40/x
  3. Step 3: Cross multiply
    202,948.40x = 304,422.60 × 92,140.40
  4. Step 4: Simplify right side
    202,948.40x = 28,049,620,133.04
  5. Step 5: Solve for x
    x = 28,049,620,133.04/202,948.40
  6. Step 6: Final answer
    x = 138,210.60

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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.