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Finding the Fourth Proportional to 93,108.42, 128,487.87 and 50,666.04

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Solution

The fourth proportional to 93,108.42, 128,487.87 and 50,666.04 is: 69,918.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,108.42 : 128,487.87 = 50,666.04 : x
  2. Step 2: Convert to fraction form
    93,108.42/128,487.87 = 50,666.04/x
  3. Step 3: Cross multiply
    93,108.42x = 128,487.87 × 50,666.04
  4. Step 4: Simplify right side
    93,108.42x = 6,509,971,560.93
  5. Step 5: Solve for x
    x = 6,509,971,560.93/93,108.42
  6. Step 6: Final answer
    x = 69,918.18

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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.