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Finding the Fourth Proportional to 86,394.59, 129,503.02 and 33,074.01

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Solution

The fourth proportional to 86,394.59, 129,503.02 and 33,074.01 is: 49,577.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,394.59 : 129,503.02 = 33,074.01 : x
  2. Step 2: Convert to fraction form
    86,394.59/129,503.02 = 33,074.01/x
  3. Step 3: Cross multiply
    86,394.59x = 129,503.02 × 33,074.01
  4. Step 4: Simplify right side
    86,394.59x = 4,283,184,178.51
  5. Step 5: Solve for x
    x = 4,283,184,178.51/86,394.59
  6. Step 6: Final answer
    x = 49,577.00

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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.