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Finding the Fourth Proportional to 125,119.88, 187,632.64 and 40,860.44

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Solution

The fourth proportional to 125,119.88, 187,632.64 and 40,860.44 is: 61,275.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,119.88 : 187,632.64 = 40,860.44 : x
  2. Step 2: Convert to fraction form
    125,119.88/187,632.64 = 40,860.44/x
  3. Step 3: Cross multiply
    125,119.88x = 187,632.64 × 40,860.44
  4. Step 4: Simplify right side
    125,119.88x = 7,666,752,228.76
  5. Step 5: Solve for x
    x = 7,666,752,228.76/125,119.88
  6. Step 6: Final answer
    x = 61,275.25

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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.