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Finding the Fourth Proportional to 163,615.93, 245,276.25 and 113,719.52

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Solution

The fourth proportional to 163,615.93, 245,276.25 and 113,719.52 is: 170,476.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,615.93 : 245,276.25 = 113,719.52 : x
  2. Step 2: Convert to fraction form
    163,615.93/245,276.25 = 113,719.52/x
  3. Step 3: Cross multiply
    163,615.93x = 245,276.25 × 113,719.52
  4. Step 4: Simplify right side
    163,615.93x = 27,892,697,417.40
  5. Step 5: Solve for x
    x = 27,892,697,417.40/163,615.93
  6. Step 6: Final answer
    x = 170,476.66

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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.