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Finding the Fourth Proportional to 104,762.61, 144,471.87 and 70,385.01

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Solution

The fourth proportional to 104,762.61, 144,471.87 and 70,385.01 is: 97,063.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,762.61 : 144,471.87 = 70,385.01 : x
  2. Step 2: Convert to fraction form
    104,762.61/144,471.87 = 70,385.01/x
  3. Step 3: Cross multiply
    104,762.61x = 144,471.87 × 70,385.01
  4. Step 4: Simplify right side
    104,762.61x = 10,168,654,014.67
  5. Step 5: Solve for x
    x = 10,168,654,014.67/104,762.61
  6. Step 6: Final answer
    x = 97,063.77

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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.