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Finding the Fourth Proportional to 177,312.70, 265,969.05 and 84,000.70

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Solution

The fourth proportional to 177,312.70, 265,969.05 and 84,000.70 is: 126,001.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,312.70 : 265,969.05 = 84,000.70 : x
  2. Step 2: Convert to fraction form
    177,312.70/265,969.05 = 84,000.70/x
  3. Step 3: Cross multiply
    177,312.70x = 265,969.05 × 84,000.70
  4. Step 4: Simplify right side
    177,312.70x = 22,341,586,378.34
  5. Step 5: Solve for x
    x = 22,341,586,378.34/177,312.70
  6. Step 6: Final answer
    x = 126,001.05

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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.