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Finding the Fourth Proportional to 159,700.80, 239,090.40 and 97,492.80

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Solution

The fourth proportional to 159,700.80, 239,090.40 and 97,492.80 is: 145,957.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,700.80 : 239,090.40 = 97,492.80 : x
  2. Step 2: Convert to fraction form
    159,700.80/239,090.40 = 97,492.80/x
  3. Step 3: Cross multiply
    159,700.80x = 239,090.40 × 97,492.80
  4. Step 4: Simplify right side
    159,700.80x = 23,309,592,549.12
  5. Step 5: Solve for x
    x = 23,309,592,549.12/159,700.80
  6. Step 6: Final answer
    x = 145,957.89

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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.