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Finding the Fourth Proportional to 409,800.60, 614,700.90 and 114,312.60

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Solution

The fourth proportional to 409,800.60, 614,700.90 and 114,312.60 is: 171,468.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,800.60 : 614,700.90 = 114,312.60 : x
  2. Step 2: Convert to fraction form
    409,800.60/614,700.90 = 114,312.60/x
  3. Step 3: Cross multiply
    409,800.60x = 614,700.90 × 114,312.60
  4. Step 4: Simplify right side
    409,800.60x = 70,268,058,101.34
  5. Step 5: Solve for x
    x = 70,268,058,101.34/409,800.60
  6. Step 6: Final answer
    x = 171,468.90

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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.