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Finding the Fourth Proportional to 93,381.78, 128,859.66 and 53,096.04

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Solution

The fourth proportional to 93,381.78, 128,859.66 and 53,096.04 is: 73,268.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,381.78 : 128,859.66 = 53,096.04 : x
  2. Step 2: Convert to fraction form
    93,381.78/128,859.66 = 53,096.04/x
  3. Step 3: Cross multiply
    93,381.78x = 128,859.66 × 53,096.04
  4. Step 4: Simplify right side
    93,381.78x = 6,841,937,661.75
  5. Step 5: Solve for x
    x = 6,841,937,661.75/93,381.78
  6. Step 6: Final answer
    x = 73,268.44

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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.