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Finding the Fourth Proportional to 341,445.80, 512,168.70 and 163,861.40

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Solution

The fourth proportional to 341,445.80, 512,168.70 and 163,861.40 is: 245,792.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,445.80 : 512,168.70 = 163,861.40 : x
  2. Step 2: Convert to fraction form
    341,445.80/512,168.70 = 163,861.40/x
  3. Step 3: Cross multiply
    341,445.80x = 512,168.70 × 163,861.40
  4. Step 4: Simplify right side
    341,445.80x = 83,924,680,218.18
  5. Step 5: Solve for x
    x = 83,924,680,218.18/341,445.80
  6. Step 6: Final answer
    x = 245,792.10

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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.