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Finding the Fourth Proportional to 118,602.20, 177,903.30 and 39,708.20

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Solution

The fourth proportional to 118,602.20, 177,903.30 and 39,708.20 is: 59,562.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,602.20 : 177,903.30 = 39,708.20 : x
  2. Step 2: Convert to fraction form
    118,602.20/177,903.30 = 39,708.20/x
  3. Step 3: Cross multiply
    118,602.20x = 177,903.30 × 39,708.20
  4. Step 4: Simplify right side
    118,602.20x = 7,064,219,817.06
  5. Step 5: Solve for x
    x = 7,064,219,817.06/118,602.20
  6. Step 6: Final answer
    x = 59,562.30

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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.