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Finding the Fourth Proportional to 407,073.80, 610,670.84 and 140,762.81

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Solution

The fourth proportional to 407,073.80, 610,670.84 and 140,762.81 is: 211,165.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,073.80 : 610,670.84 = 140,762.81 : x
  2. Step 2: Convert to fraction form
    407,073.80/610,670.84 = 140,762.81/x
  3. Step 3: Cross multiply
    407,073.80x = 610,670.84 × 140,762.81
  4. Step 4: Simplify right side
    407,073.80x = 85,959,739,666.29
  5. Step 5: Solve for x
    x = 85,959,739,666.29/407,073.80
  6. Step 6: Final answer
    x = 211,165.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.