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Finding the Fourth Proportional to 499,526.40, 749,289.60 and 162,598.80

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Solution

The fourth proportional to 499,526.40, 749,289.60 and 162,598.80 is: 243,898.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,526.40 : 749,289.60 = 162,598.80 : x
  2. Step 2: Convert to fraction form
    499,526.40/749,289.60 = 162,598.80/x
  3. Step 3: Cross multiply
    499,526.40x = 749,289.60 × 162,598.80
  4. Step 4: Simplify right side
    499,526.40x = 121,833,589,812.48
  5. Step 5: Solve for x
    x = 121,833,589,812.48/499,526.40
  6. Step 6: Final answer
    x = 243,898.20

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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.