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Finding the Fourth Proportional to 93,614.38, 140,421.57 and 31,284.88

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Solution

The fourth proportional to 93,614.38, 140,421.57 and 31,284.88 is: 46,927.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,614.38 : 140,421.57 = 31,284.88 : x
  2. Step 2: Convert to fraction form
    93,614.38/140,421.57 = 31,284.88/x
  3. Step 3: Cross multiply
    93,614.38x = 140,421.57 × 31,284.88
  4. Step 4: Simplify right side
    93,614.38x = 4,393,071,264.75
  5. Step 5: Solve for x
    x = 4,393,071,264.75/93,614.38
  6. Step 6: Final answer
    x = 46,927.32

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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.