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Finding the Fourth Proportional to 176,985.60, 265,478.40 and 58,660.80

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Solution

The fourth proportional to 176,985.60, 265,478.40 and 58,660.80 is: 87,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,985.60 : 265,478.40 = 58,660.80 : x
  2. Step 2: Convert to fraction form
    176,985.60/265,478.40 = 58,660.80/x
  3. Step 3: Cross multiply
    176,985.60x = 265,478.40 × 58,660.80
  4. Step 4: Simplify right side
    176,985.60x = 15,573,175,326.72
  5. Step 5: Solve for x
    x = 15,573,175,326.72/176,985.60
  6. Step 6: Final answer
    x = 87,991.20

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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.