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Finding the Fourth Proportional to 115,927.71, 160,798.71 and 112,854.97

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Solution

The fourth proportional to 115,927.71, 160,798.71 and 112,854.97 is: 156,536.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,927.71 : 160,798.71 = 112,854.97 : x
  2. Step 2: Convert to fraction form
    115,927.71/160,798.71 = 112,854.97/x
  3. Step 3: Cross multiply
    115,927.71x = 160,798.71 × 112,854.97
  4. Step 4: Simplify right side
    115,927.71x = 18,146,933,028.81
  5. Step 5: Solve for x
    x = 18,146,933,028.81/115,927.71
  6. Step 6: Final answer
    x = 156,536.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.