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Finding the Fourth Proportional to 207,156.01, 310,450.51 and 156,513.40

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Solution

The fourth proportional to 207,156.01, 310,450.51 and 156,513.40 is: 234,555.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,156.01 : 310,450.51 = 156,513.40 : x
  2. Step 2: Convert to fraction form
    207,156.01/310,450.51 = 156,513.40/x
  3. Step 3: Cross multiply
    207,156.01x = 310,450.51 × 156,513.40
  4. Step 4: Simplify right side
    207,156.01x = 48,589,664,851.83
  5. Step 5: Solve for x
    x = 48,589,664,851.83/207,156.01
  6. Step 6: Final answer
    x = 234,555.90

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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.