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Finding the Fourth Proportional to 194,813.60, 292,220.40 and 137,732.90

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Solution

The fourth proportional to 194,813.60, 292,220.40 and 137,732.90 is: 206,599.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,813.60 : 292,220.40 = 137,732.90 : x
  2. Step 2: Convert to fraction form
    194,813.60/292,220.40 = 137,732.90/x
  3. Step 3: Cross multiply
    194,813.60x = 292,220.40 × 137,732.90
  4. Step 4: Simplify right side
    194,813.60x = 40,248,363,131.16
  5. Step 5: Solve for x
    x = 40,248,363,131.16/194,813.60
  6. Step 6: Final answer
    x = 206,599.35

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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.