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Finding the Fourth Proportional to 135,602.04, 187,130.30 and 75,986.04

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Solution

The fourth proportional to 135,602.04, 187,130.30 and 75,986.04 is: 104,860.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,602.04 : 187,130.30 = 75,986.04 : x
  2. Step 2: Convert to fraction form
    135,602.04/187,130.30 = 75,986.04/x
  3. Step 3: Cross multiply
    135,602.04x = 187,130.30 × 75,986.04
  4. Step 4: Simplify right side
    135,602.04x = 14,219,290,461.01
  5. Step 5: Solve for x
    x = 14,219,290,461.01/135,602.04
  6. Step 6: Final answer
    x = 104,860.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.