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Finding the Fourth Proportional to 93,305.88, 128,761.92 and 50,864.40

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Solution

The fourth proportional to 93,305.88, 128,761.92 and 50,864.40 is: 70,192.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,305.88 : 128,761.92 = 50,864.40 : x
  2. Step 2: Convert to fraction form
    93,305.88/128,761.92 = 50,864.40/x
  3. Step 3: Cross multiply
    93,305.88x = 128,761.92 × 50,864.40
  4. Step 4: Simplify right side
    93,305.88x = 6,549,397,803.65
  5. Step 5: Solve for x
    x = 6,549,397,803.65/93,305.88
  6. Step 6: Final answer
    x = 70,192.77

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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.