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Finding the Fourth Proportional to 161,730.70, 242,596.05 and 91,746.70

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Solution

The fourth proportional to 161,730.70, 242,596.05 and 91,746.70 is: 137,620.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,730.70 : 242,596.05 = 91,746.70 : x
  2. Step 2: Convert to fraction form
    161,730.70/242,596.05 = 91,746.70/x
  3. Step 3: Cross multiply
    161,730.70x = 242,596.05 × 91,746.70
  4. Step 4: Simplify right side
    161,730.70x = 22,257,387,020.54
  5. Step 5: Solve for x
    x = 22,257,387,020.54/161,730.70
  6. Step 6: Final answer
    x = 137,620.05

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1.5x scale

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.