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Finding the Fourth Proportional to 177,610.30, 266,415.45 and 128,038.30

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Solution

The fourth proportional to 177,610.30, 266,415.45 and 128,038.30 is: 192,057.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,610.30 : 266,415.45 = 128,038.30 : x
  2. Step 2: Convert to fraction form
    177,610.30/266,415.45 = 128,038.30/x
  3. Step 3: Cross multiply
    177,610.30x = 266,415.45 × 128,038.30
  4. Step 4: Simplify right side
    177,610.30x = 34,111,381,311.74
  5. Step 5: Solve for x
    x = 34,111,381,311.74/177,610.30
  6. Step 6: Final answer
    x = 192,057.45

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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.