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Finding the Fourth Proportional to 118,213.40, 177,288.90 and 59,005.40

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Solution

The fourth proportional to 118,213.40, 177,288.90 and 59,005.40 is: 88,492.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,213.40 : 177,288.90 = 59,005.40 : x
  2. Step 2: Convert to fraction form
    118,213.40/177,288.90 = 59,005.40/x
  3. Step 3: Cross multiply
    118,213.40x = 177,288.90 × 59,005.40
  4. Step 4: Simplify right side
    118,213.40x = 10,461,002,460.06
  5. Step 5: Solve for x
    x = 10,461,002,460.06/118,213.40
  6. Step 6: Final answer
    x = 88,492.53

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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.