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Finding the Fourth Proportional to 174,486.40, 261,729.60 and 146,492.80

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Solution

The fourth proportional to 174,486.40, 261,729.60 and 146,492.80 is: 219,739.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,486.40 : 261,729.60 = 146,492.80 : x
  2. Step 2: Convert to fraction form
    174,486.40/261,729.60 = 146,492.80/x
  3. Step 3: Cross multiply
    174,486.40x = 261,729.60 × 146,492.80
  4. Step 4: Simplify right side
    174,486.40x = 38,341,501,946.88
  5. Step 5: Solve for x
    x = 38,341,501,946.88/174,486.40
  6. Step 6: Final answer
    x = 219,739.20

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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.