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Finding the Fourth Proportional to 195,328.40, 292,992.60 and 148,672.40

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Solution

The fourth proportional to 195,328.40, 292,992.60 and 148,672.40 is: 223,008.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,328.40 : 292,992.60 = 148,672.40 : x
  2. Step 2: Convert to fraction form
    195,328.40/292,992.60 = 148,672.40/x
  3. Step 3: Cross multiply
    195,328.40x = 292,992.60 × 148,672.40
  4. Step 4: Simplify right side
    195,328.40x = 43,559,913,024.24
  5. Step 5: Solve for x
    x = 43,559,913,024.24/195,328.40
  6. Step 6: Final answer
    x = 223,008.60

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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.