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Finding the Fourth Proportional to 118,754.64, 178,109.66 and 59,574.42

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Solution

The fourth proportional to 118,754.64, 178,109.66 and 59,574.42 is: 89,350.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,754.64 : 178,109.66 = 59,574.42 : x
  2. Step 2: Convert to fraction form
    118,754.64/178,109.66 = 59,574.42/x
  3. Step 3: Cross multiply
    118,754.64x = 178,109.66 × 59,574.42
  4. Step 4: Simplify right side
    118,754.64x = 10,610,779,393.03
  5. Step 5: Solve for x
    x = 10,610,779,393.03/118,754.64
  6. Step 6: Final answer
    x = 89,350.44

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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.