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Finding the Fourth Proportional to 295,681.60, 443,392.80 and 118,129.60

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Solution

The fourth proportional to 295,681.60, 443,392.80 and 118,129.60 is: 177,142.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,681.60 : 443,392.80 = 118,129.60 : x
  2. Step 2: Convert to fraction form
    295,681.60/443,392.80 = 118,129.60/x
  3. Step 3: Cross multiply
    295,681.60x = 443,392.80 × 118,129.60
  4. Step 4: Simplify right side
    295,681.60x = 52,377,814,106.88
  5. Step 5: Solve for x
    x = 52,377,814,106.88/295,681.60
  6. Step 6: Final answer
    x = 177,142.62

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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.