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Finding the Fourth Proportional to 118,411.40, 177,557.58 and 39,498.44

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Solution

The fourth proportional to 118,411.40, 177,557.58 and 39,498.44 is: 59,227.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,411.40 : 177,557.58 = 39,498.44 : x
  2. Step 2: Convert to fraction form
    118,411.40/177,557.58 = 39,498.44/x
  3. Step 3: Cross multiply
    118,411.40x = 177,557.58 × 39,498.44
  4. Step 4: Simplify right side
    118,411.40x = 7,013,247,420.18
  5. Step 5: Solve for x
    x = 7,013,247,420.18/118,411.40
  6. Step 6: Final answer
    x = 59,227.81

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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.