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Finding the Fourth Proportional to 235,420.60, 353,130.90 and 151,439.80

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Solution

The fourth proportional to 235,420.60, 353,130.90 and 151,439.80 is: 227,159.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,420.60 : 353,130.90 = 151,439.80 : x
  2. Step 2: Convert to fraction form
    235,420.60/353,130.90 = 151,439.80/x
  3. Step 3: Cross multiply
    235,420.60x = 353,130.90 × 151,439.80
  4. Step 4: Simplify right side
    235,420.60x = 53,478,072,869.82
  5. Step 5: Solve for x
    x = 53,478,072,869.82/235,420.60
  6. Step 6: Final answer
    x = 227,159.70

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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.