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Finding the Fourth Proportional to 159,709.80, 239,103.90 and 97,501.80

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Solution

The fourth proportional to 159,709.80, 239,103.90 and 97,501.80 is: 145,971.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,709.80 : 239,103.90 = 97,501.80 : x
  2. Step 2: Convert to fraction form
    159,709.80/239,103.90 = 97,501.80/x
  3. Step 3: Cross multiply
    159,709.80x = 239,103.90 × 97,501.80
  4. Step 4: Simplify right side
    159,709.80x = 23,313,060,637.02
  5. Step 5: Solve for x
    x = 23,313,060,637.02/159,709.80
  6. Step 6: Final answer
    x = 145,971.38

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1.5x scale

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.