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Finding the Fourth Proportional to 161,871.30, 242,806.95 and 152,021.70

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Solution

The fourth proportional to 161,871.30, 242,806.95 and 152,021.70 is: 228,032.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,871.30 : 242,806.95 = 152,021.70 : x
  2. Step 2: Convert to fraction form
    161,871.30/242,806.95 = 152,021.70/x
  3. Step 3: Cross multiply
    161,871.30x = 242,806.95 × 152,021.70
  4. Step 4: Simplify right side
    161,871.30x = 36,911,925,310.82
  5. Step 5: Solve for x
    x = 36,911,925,310.82/161,871.30
  6. Step 6: Final answer
    x = 228,032.55

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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.