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Finding the Fourth Proportional to 92,406.30, 138,609.45 and 92,406.30

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Solution

The fourth proportional to 92,406.30, 138,609.45 and 92,406.30 is: 138,609.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,406.30 : 138,609.45 = 92,406.30 : x
  2. Step 2: Convert to fraction form
    92,406.30/138,609.45 = 92,406.30/x
  3. Step 3: Cross multiply
    92,406.30x = 138,609.45 × 92,406.30
  4. Step 4: Simplify right side
    92,406.30x = 12,808,386,419.54
  5. Step 5: Solve for x
    x = 12,808,386,419.54/92,406.30
  6. Step 6: Final answer
    x = 138,609.45

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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.