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Finding the Fourth Proportional to 118,852.64, 178,167.28 and 39,911.50

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Solution

The fourth proportional to 118,852.64, 178,167.28 and 39,911.50 is: 59,829.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,852.64 : 178,167.28 = 39,911.50 : x
  2. Step 2: Convert to fraction form
    118,852.64/178,167.28 = 39,911.50/x
  3. Step 3: Cross multiply
    118,852.64x = 178,167.28 × 39,911.50
  4. Step 4: Simplify right side
    118,852.64x = 7,110,923,395.72
  5. Step 5: Solve for x
    x = 7,110,923,395.72/118,852.64
  6. Step 6: Final answer
    x = 59,829.75

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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.