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Finding the Fourth Proportional to 93,387.71, 128,874.88 and 50,946.25

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Solution

The fourth proportional to 93,387.71, 128,874.88 and 50,946.25 is: 70,305.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,387.71 : 128,874.88 = 50,946.25 : x
  2. Step 2: Convert to fraction form
    93,387.71/128,874.88 = 50,946.25/x
  3. Step 3: Cross multiply
    93,387.71x = 128,874.88 × 50,946.25
  4. Step 4: Simplify right side
    93,387.71x = 6,565,691,855.20
  5. Step 5: Solve for x
    x = 6,565,691,855.20/93,387.71
  6. Step 6: Final answer
    x = 70,305.74

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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.