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Finding the Fourth Proportional to 176,720.80, 265,081.20 and 163,890.40

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Solution

The fourth proportional to 176,720.80, 265,081.20 and 163,890.40 is: 245,835.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,720.80 : 265,081.20 = 163,890.40 : x
  2. Step 2: Convert to fraction form
    176,720.80/265,081.20 = 163,890.40/x
  3. Step 3: Cross multiply
    176,720.80x = 265,081.20 × 163,890.40
  4. Step 4: Simplify right side
    176,720.80x = 43,444,263,900.48
  5. Step 5: Solve for x
    x = 43,444,263,900.48/176,720.80
  6. Step 6: Final answer
    x = 245,835.60

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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.