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Finding the Fourth Proportional to 171,699.60, 257,549.40 and 152,672.70

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Solution

The fourth proportional to 171,699.60, 257,549.40 and 152,672.70 is: 229,009.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,699.60 : 257,549.40 = 152,672.70 : x
  2. Step 2: Convert to fraction form
    171,699.60/257,549.40 = 152,672.70/x
  3. Step 3: Cross multiply
    171,699.60x = 257,549.40 × 152,672.70
  4. Step 4: Simplify right side
    171,699.60x = 39,320,762,281.38
  5. Step 5: Solve for x
    x = 39,320,762,281.38/171,699.60
  6. Step 6: Final answer
    x = 229,009.05

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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.