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Finding the Fourth Proportional to 160,622.76, 240,742.98 and 121,049.40

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Solution

The fourth proportional to 160,622.76, 240,742.98 and 121,049.40 is: 181,430.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,622.76 : 240,742.98 = 121,049.40 : x
  2. Step 2: Convert to fraction form
    160,622.76/240,742.98 = 121,049.40/x
  3. Step 3: Cross multiply
    160,622.76x = 240,742.98 × 121,049.40
  4. Step 4: Simplify right side
    160,622.76x = 29,141,793,283.21
  5. Step 5: Solve for x
    x = 29,141,793,283.21/160,622.76
  6. Step 6: Final answer
    x = 181,430.04

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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.