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Finding the Fourth Proportional to 156,060.20, 233,744.70 and 128,412.20

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Solution

The fourth proportional to 156,060.20, 233,744.70 and 128,412.20 is: 192,333.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,060.20 : 233,744.70 = 128,412.20 : x
  2. Step 2: Convert to fraction form
    156,060.20/233,744.70 = 128,412.20/x
  3. Step 3: Cross multiply
    156,060.20x = 233,744.70 × 128,412.20
  4. Step 4: Simplify right side
    156,060.20x = 30,015,671,165.34
  5. Step 5: Solve for x
    x = 30,015,671,165.34/156,060.20
  6. Step 6: Final answer
    x = 192,333.93

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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.