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Finding the Fourth Proportional to 118,009.60, 162,862.32 and 67,031.44

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Solution

The fourth proportional to 118,009.60, 162,862.32 and 67,031.44 is: 92,508.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,009.60 : 162,862.32 = 67,031.44 : x
  2. Step 2: Convert to fraction form
    118,009.60/162,862.32 = 67,031.44/x
  3. Step 3: Cross multiply
    118,009.60x = 162,862.32 × 67,031.44
  4. Step 4: Simplify right side
    118,009.60x = 10,916,895,831.34
  5. Step 5: Solve for x
    x = 10,916,895,831.34/118,009.60
  6. Step 6: Final answer
    x = 92,508.54

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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.