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Finding the Fourth Proportional to 272,934.80, 409,824.60 and 148,518.80

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Solution

The fourth proportional to 272,934.80, 409,824.60 and 148,518.80 is: 223,008.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,934.80 : 409,824.60 = 148,518.80 : x
  2. Step 2: Convert to fraction form
    272,934.80/409,824.60 = 148,518.80/x
  3. Step 3: Cross multiply
    272,934.80x = 409,824.60 × 148,518.80
  4. Step 4: Simplify right side
    272,934.80x = 60,866,657,802.48
  5. Step 5: Solve for x
    x = 60,866,657,802.48/272,934.80
  6. Step 6: Final answer
    x = 223,008.05

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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.