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Finding the Fourth Proportional to 86,158.94, 129,301.61 and 56,566.40

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Solution

The fourth proportional to 86,158.94, 129,301.61 and 56,566.40 is: 84,891.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,158.94 : 129,301.61 = 56,566.40 : x
  2. Step 2: Convert to fraction form
    86,158.94/129,301.61 = 56,566.40/x
  3. Step 3: Cross multiply
    86,158.94x = 129,301.61 × 56,566.40
  4. Step 4: Simplify right side
    86,158.94x = 7,314,125,662.56
  5. Step 5: Solve for x
    x = 7,314,125,662.56/86,158.94
  6. Step 6: Final answer
    x = 84,891.09

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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.