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Finding the Fourth Proportional to 104,049, 143,586.54 and 56,301.30

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Solution

The fourth proportional to 104,049, 143,586.54 and 56,301.30 is: 77,695.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,049 : 143,586.54 = 56,301.30 : x
  2. Step 2: Convert to fraction form
    104,049/143,586.54 = 56,301.30/x
  3. Step 3: Cross multiply
    104,049x = 143,586.54 × 56,301.30
  4. Step 4: Simplify right side
    104,049x = 8,084,108,864.50
  5. Step 5: Solve for x
    x = 8,084,108,864.50/104,049
  6. Step 6: Final answer
    x = 77,695.21

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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.