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Finding the Fourth Proportional to 152,630.80, 228,946.20 and 47,460.40

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Solution

The fourth proportional to 152,630.80, 228,946.20 and 47,460.40 is: 71,190.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,630.80 : 228,946.20 = 47,460.40 : x
  2. Step 2: Convert to fraction form
    152,630.80/228,946.20 = 47,460.40/x
  3. Step 3: Cross multiply
    152,630.80x = 228,946.20 × 47,460.40
  4. Step 4: Simplify right side
    152,630.80x = 10,865,878,230.48
  5. Step 5: Solve for x
    x = 10,865,878,230.48/152,630.80
  6. Step 6: Final answer
    x = 71,190.60

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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.