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Finding the Fourth Proportional to 93,422.25, 128,925.45 and 50,983.52

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Solution

The fourth proportional to 93,422.25, 128,925.45 and 50,983.52 is: 70,358.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,422.25 : 128,925.45 = 50,983.52 : x
  2. Step 2: Convert to fraction form
    93,422.25/128,925.45 = 50,983.52/x
  3. Step 3: Cross multiply
    93,422.25x = 128,925.45 × 50,983.52
  4. Step 4: Simplify right side
    93,422.25x = 6,573,072,613.96
  5. Step 5: Solve for x
    x = 6,573,072,613.96/93,422.25
  6. Step 6: Final answer
    x = 70,358.75

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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.