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Finding the Fourth Proportional to 171,950.28, 257,807.73 and 87,547.11

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Solution

The fourth proportional to 171,950.28, 257,807.73 and 87,547.11 is: 131,260.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,950.28 : 257,807.73 = 87,547.11 : x
  2. Step 2: Convert to fraction form
    171,950.28/257,807.73 = 87,547.11/x
  3. Step 3: Cross multiply
    171,950.28x = 257,807.73 × 87,547.11
  4. Step 4: Simplify right side
    171,950.28x = 22,570,321,697.16
  5. Step 5: Solve for x
    x = 22,570,321,697.16/171,950.28
  6. Step 6: Final answer
    x = 131,260.74

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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.