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Finding the Fourth Proportional to 118,812.30, 178,218.45 and 35,706.30

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Solution

The fourth proportional to 118,812.30, 178,218.45 and 35,706.30 is: 53,559.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,812.30 : 178,218.45 = 35,706.30 : x
  2. Step 2: Convert to fraction form
    118,812.30/178,218.45 = 35,706.30/x
  3. Step 3: Cross multiply
    118,812.30x = 178,218.45 × 35,706.30
  4. Step 4: Simplify right side
    118,812.30x = 6,363,521,441.24
  5. Step 5: Solve for x
    x = 6,363,521,441.24/118,812.30
  6. Step 6: Final answer
    x = 53,559.45

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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.