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Finding the Fourth Proportional to 176,877.80, 265,316.70 and 120,890.60

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Solution

The fourth proportional to 176,877.80, 265,316.70 and 120,890.60 is: 181,335.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,877.80 : 265,316.70 = 120,890.60 : x
  2. Step 2: Convert to fraction form
    176,877.80/265,316.70 = 120,890.60/x
  3. Step 3: Cross multiply
    176,877.80x = 265,316.70 × 120,890.60
  4. Step 4: Simplify right side
    176,877.80x = 32,074,295,053.02
  5. Step 5: Solve for x
    x = 32,074,295,053.02/176,877.80
  6. Step 6: Final answer
    x = 181,335.90

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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.