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Finding the Fourth Proportional to 90,833.70, 127,298.40 and 90,833.70

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Solution

The fourth proportional to 90,833.70, 127,298.40 and 90,833.70 is: 127,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,833.70 : 127,298.40 = 90,833.70 : x
  2. Step 2: Convert to fraction form
    90,833.70/127,298.40 = 90,833.70/x
  3. Step 3: Cross multiply
    90,833.70x = 127,298.40 × 90,833.70
  4. Step 4: Simplify right side
    90,833.70x = 11,562,984,676.08
  5. Step 5: Solve for x
    x = 11,562,984,676.08/90,833.70
  6. Step 6: Final answer
    x = 127,298.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.