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Finding the Fourth Proportional to 93,259.67, 128,718.17 and 55,004.91

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Solution

The fourth proportional to 93,259.67, 128,718.17 and 55,004.91 is: 75,918.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,259.67 : 128,718.17 = 55,004.91 : x
  2. Step 2: Convert to fraction form
    93,259.67/128,718.17 = 55,004.91/x
  3. Step 3: Cross multiply
    93,259.67x = 128,718.17 × 55,004.91
  4. Step 4: Simplify right side
    93,259.67x = 7,080,131,081.19
  5. Step 5: Solve for x
    x = 7,080,131,081.19/93,259.67
  6. Step 6: Final answer
    x = 75,918.47

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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.