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Finding the Fourth Proportional to 310,938.50, 466,419.90 and 97,851.80

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Solution

The fourth proportional to 310,938.50, 466,419.90 and 97,851.80 is: 146,781.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,938.50 : 466,419.90 = 97,851.80 : x
  2. Step 2: Convert to fraction form
    310,938.50/466,419.90 = 97,851.80/x
  3. Step 3: Cross multiply
    310,938.50x = 466,419.90 × 97,851.80
  4. Step 4: Simplify right side
    310,938.50x = 45,640,026,770.82
  5. Step 5: Solve for x
    x = 45,640,026,770.82/310,938.50
  6. Step 6: Final answer
    x = 146,781.52

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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.