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Finding the Fourth Proportional to 118,165.96, 177,210.64 and 39,259

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Solution

The fourth proportional to 118,165.96, 177,210.64 and 39,259 is: 58,875.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,165.96 : 177,210.64 = 39,259 : x
  2. Step 2: Convert to fraction form
    118,165.96/177,210.64 = 39,259/x
  3. Step 3: Cross multiply
    118,165.96x = 177,210.64 × 39,259
  4. Step 4: Simplify right side
    118,165.96x = 6,957,112,515.76
  5. Step 5: Solve for x
    x = 6,957,112,515.76/118,165.96
  6. Step 6: Final answer
    x = 58,875.78

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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.