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Finding the Fourth Proportional to 160,499.80, 221,489.53 and 88,879.74

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Solution

The fourth proportional to 160,499.80, 221,489.53 and 88,879.74 is: 122,653.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,499.80 : 221,489.53 = 88,879.74 : x
  2. Step 2: Convert to fraction form
    160,499.80/221,489.53 = 88,879.74/x
  3. Step 3: Cross multiply
    160,499.80x = 221,489.53 × 88,879.74
  4. Step 4: Simplify right side
    160,499.80x = 19,685,931,506.71
  5. Step 5: Solve for x
    x = 19,685,931,506.71/160,499.80
  6. Step 6: Final answer
    x = 122,653.93

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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.