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Finding the Fourth Proportional to 125,570.90, 188,134.94 and 66,275.94

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Solution

The fourth proportional to 125,570.90, 188,134.94 and 66,275.94 is: 99,297.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,570.90 : 188,134.94 = 66,275.94 : x
  2. Step 2: Convert to fraction form
    125,570.90/188,134.94 = 66,275.94/x
  3. Step 3: Cross multiply
    125,570.90x = 188,134.94 × 66,275.94
  4. Step 4: Simplify right side
    125,570.90x = 12,468,819,995.34
  5. Step 5: Solve for x
    x = 12,468,819,995.34/125,570.90
  6. Step 6: Final answer
    x = 99,297.05

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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.