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Finding the Fourth Proportional to 160,708.32, 221,779.49 and 92,739.40

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Solution

The fourth proportional to 160,708.32, 221,779.49 and 92,739.40 is: 127,981.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,708.32 : 221,779.49 = 92,739.40 : x
  2. Step 2: Convert to fraction form
    160,708.32/221,779.49 = 92,739.40/x
  3. Step 3: Cross multiply
    160,708.32x = 221,779.49 × 92,739.40
  4. Step 4: Simplify right side
    160,708.32x = 20,567,696,603.06
  5. Step 5: Solve for x
    x = 20,567,696,603.06/160,708.32
  6. Step 6: Final answer
    x = 127,981.53

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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.