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Finding the Fourth Proportional to 124,008.80, 186,056.40 and 53,938.40

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Solution

The fourth proportional to 124,008.80, 186,056.40 and 53,938.40 is: 80,926.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,008.80 : 186,056.40 = 53,938.40 : x
  2. Step 2: Convert to fraction form
    124,008.80/186,056.40 = 53,938.40/x
  3. Step 3: Cross multiply
    124,008.80x = 186,056.40 × 53,938.40
  4. Step 4: Simplify right side
    124,008.80x = 10,035,584,525.76
  5. Step 5: Solve for x
    x = 10,035,584,525.76/124,008.80
  6. Step 6: Final answer
    x = 80,926.39

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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.