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Finding the Fourth Proportional to 141,754.51, 212,526.28 and 61,777.28

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Solution

The fourth proportional to 141,754.51, 212,526.28 and 61,777.28 is: 92,619.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,754.51 : 212,526.28 = 61,777.28 : x
  2. Step 2: Convert to fraction form
    141,754.51/212,526.28 = 61,777.28/x
  3. Step 3: Cross multiply
    141,754.51x = 212,526.28 × 61,777.28
  4. Step 4: Simplify right side
    141,754.51x = 13,129,296,115.46
  5. Step 5: Solve for x
    x = 13,129,296,115.46/141,754.51
  6. Step 6: Final answer
    x = 92,619.96

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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.