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Finding the Fourth Proportional to 171,210.80, 257,123.40 and 124,516.40

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Solution

The fourth proportional to 171,210.80, 257,123.40 and 124,516.40 is: 186,998.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,210.80 : 257,123.40 = 124,516.40 : x
  2. Step 2: Convert to fraction form
    171,210.80/257,123.40 = 124,516.40/x
  3. Step 3: Cross multiply
    171,210.80x = 257,123.40 × 124,516.40
  4. Step 4: Simplify right side
    171,210.80x = 32,016,080,123.76
  5. Step 5: Solve for x
    x = 32,016,080,123.76/171,210.80
  6. Step 6: Final answer
    x = 186,998.02

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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.