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Finding the Fourth Proportional to 213,466.60, 319,739.10 and 176,602.60

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Solution

The fourth proportional to 213,466.60, 319,739.10 and 176,602.60 is: 264,522.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,466.60 : 319,739.10 = 176,602.60 : x
  2. Step 2: Convert to fraction form
    213,466.60/319,739.10 = 176,602.60/x
  3. Step 3: Cross multiply
    213,466.60x = 319,739.10 × 176,602.60
  4. Step 4: Simplify right side
    213,466.60x = 56,466,756,381.66
  5. Step 5: Solve for x
    x = 56,466,756,381.66/213,466.60
  6. Step 6: Final answer
    x = 264,522.68

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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.