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Finding the Fourth Proportional to 93,630.40, 140,575.20 and 73,931.20

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Solution

The fourth proportional to 93,630.40, 140,575.20 and 73,931.20 is: 110,999.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,630.40 : 140,575.20 = 73,931.20 : x
  2. Step 2: Convert to fraction form
    93,630.40/140,575.20 = 73,931.20/x
  3. Step 3: Cross multiply
    93,630.40x = 140,575.20 × 73,931.20
  4. Step 4: Simplify right side
    93,630.40x = 10,392,893,226.24
  5. Step 5: Solve for x
    x = 10,392,893,226.24/93,630.40
  6. Step 6: Final answer
    x = 110,999.13

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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.