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Finding the Fourth Proportional to 93,229.59, 128,655.68 and 50,787.21

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Solution

The fourth proportional to 93,229.59, 128,655.68 and 50,787.21 is: 70,085.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,229.59 : 128,655.68 = 50,787.21 : x
  2. Step 2: Convert to fraction form
    93,229.59/128,655.68 = 50,787.21/x
  3. Step 3: Cross multiply
    93,229.59x = 128,655.68 × 50,787.21
  4. Step 4: Simplify right side
    93,229.59x = 6,534,062,783.92
  5. Step 5: Solve for x
    x = 6,534,062,783.92/93,229.59
  6. Step 6: Final answer
    x = 70,085.72

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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.