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Finding the Fourth Proportional to 104,457.46, 144,008.47 and 71,750.87

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Solution

The fourth proportional to 104,457.46, 144,008.47 and 71,750.87 is: 98,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,457.46 : 144,008.47 = 71,750.87 : x
  2. Step 2: Convert to fraction form
    104,457.46/144,008.47 = 71,750.87/x
  3. Step 3: Cross multiply
    104,457.46x = 144,008.47 × 71,750.87
  4. Step 4: Simplify right side
    104,457.46x = 10,332,733,009.87
  5. Step 5: Solve for x
    x = 10,332,733,009.87/104,457.46
  6. Step 6: Final answer
    x = 98,918.10

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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.