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Finding the Fourth Proportional to 95,891.40, 143,858.70 and 56,428.20

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Solution

The fourth proportional to 95,891.40, 143,858.70 and 56,428.20 is: 84,655.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,891.40 : 143,858.70 = 56,428.20 : x
  2. Step 2: Convert to fraction form
    95,891.40/143,858.70 = 56,428.20/x
  3. Step 3: Cross multiply
    95,891.40x = 143,858.70 × 56,428.20
  4. Step 4: Simplify right side
    95,891.40x = 8,117,687,495.34
  5. Step 5: Solve for x
    x = 8,117,687,495.34/95,891.40
  6. Step 6: Final answer
    x = 84,655.01

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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.