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Finding the Fourth Proportional to 118,300.40, 177,385.80 and 48,100.40

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Solution

The fourth proportional to 118,300.40, 177,385.80 and 48,100.40 is: 72,124.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,300.40 : 177,385.80 = 48,100.40 : x
  2. Step 2: Convert to fraction form
    118,300.40/177,385.80 = 48,100.40/x
  3. Step 3: Cross multiply
    118,300.40x = 177,385.80 × 48,100.40
  4. Step 4: Simplify right side
    118,300.40x = 8,532,327,934.32
  5. Step 5: Solve for x
    x = 8,532,327,934.32/118,300.40
  6. Step 6: Final answer
    x = 72,124.25

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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.