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Finding the Fourth Proportional to 118,456.40, 177,619.80 and 48,256.40

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Solution

The fourth proportional to 118,456.40, 177,619.80 and 48,256.40 is: 72,358.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,456.40 : 177,619.80 = 48,256.40 : x
  2. Step 2: Convert to fraction form
    118,456.40/177,619.80 = 48,256.40/x
  3. Step 3: Cross multiply
    118,456.40x = 177,619.80 × 48,256.40
  4. Step 4: Simplify right side
    118,456.40x = 8,571,292,116.72
  5. Step 5: Solve for x
    x = 8,571,292,116.72/118,456.40
  6. Step 6: Final answer
    x = 72,358.20

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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.