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Finding the Fourth Proportional to 183,695.88, 253,619.86 and 112,117.40

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Solution

The fourth proportional to 183,695.88, 253,619.86 and 112,117.40 is: 154,794.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,695.88 : 253,619.86 = 112,117.40 : x
  2. Step 2: Convert to fraction form
    183,695.88/253,619.86 = 112,117.40/x
  3. Step 3: Cross multiply
    183,695.88x = 253,619.86 × 112,117.40
  4. Step 4: Simplify right side
    183,695.88x = 28,435,199,291.56
  5. Step 5: Solve for x
    x = 28,435,199,291.56/183,695.88
  6. Step 6: Final answer
    x = 154,794.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.