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Finding the Fourth Proportional to 253,524.95, 380,262.65 and 66,536.45

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Solution

The fourth proportional to 253,524.95, 380,262.65 and 66,536.45 is: 99,798.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,524.95 : 380,262.65 = 66,536.45 : x
  2. Step 2: Convert to fraction form
    253,524.95/380,262.65 = 66,536.45/x
  3. Step 3: Cross multiply
    253,524.95x = 380,262.65 × 66,536.45
  4. Step 4: Simplify right side
    253,524.95x = 25,301,324,897.28
  5. Step 5: Solve for x
    x = 25,301,324,897.28/253,524.95
  6. Step 6: Final answer
    x = 99,798.17

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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.