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Finding the Fourth Proportional to 599,970.60, 899,955.90 and 156,738.60

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Solution

The fourth proportional to 599,970.60, 899,955.90 and 156,738.60 is: 235,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,970.60 : 899,955.90 = 156,738.60 : x
  2. Step 2: Convert to fraction form
    599,970.60/899,955.90 = 156,738.60/x
  3. Step 3: Cross multiply
    599,970.60x = 899,955.90 × 156,738.60
  4. Step 4: Simplify right side
    599,970.60x = 141,057,827,827.74
  5. Step 5: Solve for x
    x = 141,057,827,827.74/599,970.60
  6. Step 6: Final answer
    x = 235,107.90

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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.