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Finding the Fourth Proportional to 76,101.50, 114,204.10 and 26,853.50

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Solution

The fourth proportional to 76,101.50, 114,204.10 and 26,853.50 is: 40,298.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,101.50 : 114,204.10 = 26,853.50 : x
  2. Step 2: Convert to fraction form
    76,101.50/114,204.10 = 26,853.50/x
  3. Step 3: Cross multiply
    76,101.50x = 114,204.10 × 26,853.50
  4. Step 4: Simplify right side
    76,101.50x = 3,066,779,799.35
  5. Step 5: Solve for x
    x = 3,066,779,799.35/76,101.50
  6. Step 6: Final answer
    x = 40,298.55

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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.