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Finding the Fourth Proportional to 158,686.26, 238,030.26 and 40,357.68

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Solution

The fourth proportional to 158,686.26, 238,030.26 and 40,357.68 is: 60,536.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,686.26 : 238,030.26 = 40,357.68 : x
  2. Step 2: Convert to fraction form
    158,686.26/238,030.26 = 40,357.68/x
  3. Step 3: Cross multiply
    158,686.26x = 238,030.26 × 40,357.68
  4. Step 4: Simplify right side
    158,686.26x = 9,606,349,063.40
  5. Step 5: Solve for x
    x = 9,606,349,063.40/158,686.26
  6. Step 6: Final answer
    x = 60,536.74

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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.