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Finding the Fourth Proportional to 93,387.76, 128,874.94 and 50,946.29

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Solution

The fourth proportional to 93,387.76, 128,874.94 and 50,946.29 is: 70,305.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,387.76 : 128,874.94 = 50,946.29 : x
  2. Step 2: Convert to fraction form
    93,387.76/128,874.94 = 50,946.29/x
  3. Step 3: Cross multiply
    93,387.76x = 128,874.94 × 50,946.29
  4. Step 4: Simplify right side
    93,387.76x = 6,565,700,066.97
  5. Step 5: Solve for x
    x = 6,565,700,066.97/93,387.76
  6. Step 6: Final answer
    x = 70,305.79

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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.