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Finding the Fourth Proportional to 133,612.80, 200,030.40 and 118,060.80

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Solution

The fourth proportional to 133,612.80, 200,030.40 and 118,060.80 is: 176,747.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,612.80 : 200,030.40 = 118,060.80 : x
  2. Step 2: Convert to fraction form
    133,612.80/200,030.40 = 118,060.80/x
  3. Step 3: Cross multiply
    133,612.80x = 200,030.40 × 118,060.80
  4. Step 4: Simplify right side
    133,612.80x = 23,615,749,048.32
  5. Step 5: Solve for x
    x = 23,615,749,048.32/133,612.80
  6. Step 6: Final answer
    x = 176,747.65

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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.