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Finding the Fourth Proportional to 93,348.72, 128,820.96 and 50,909.52

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Solution

The fourth proportional to 93,348.72, 128,820.96 and 50,909.52 is: 70,254.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,348.72 : 128,820.96 = 50,909.52 : x
  2. Step 2: Convert to fraction form
    93,348.72/128,820.96 = 50,909.52/x
  3. Step 3: Cross multiply
    93,348.72x = 128,820.96 × 50,909.52
  4. Step 4: Simplify right side
    93,348.72x = 6,558,213,239.54
  5. Step 5: Solve for x
    x = 6,558,213,239.54/93,348.72
  6. Step 6: Final answer
    x = 70,254.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.