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Finding the Fourth Proportional to 118,730.90, 163,846.50 and 65,014.94

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Solution

The fourth proportional to 118,730.90, 163,846.50 and 65,014.94 is: 89,719.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,730.90 : 163,846.50 = 65,014.94 : x
  2. Step 2: Convert to fraction form
    118,730.90/163,846.50 = 65,014.94/x
  3. Step 3: Cross multiply
    118,730.90x = 163,846.50 × 65,014.94
  4. Step 4: Simplify right side
    118,730.90x = 10,652,470,366.71
  5. Step 5: Solve for x
    x = 10,652,470,366.71/118,730.90
  6. Step 6: Final answer
    x = 89,719.44

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1.5x scale

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.