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Finding the Fourth Proportional to 158,703.40, 238,055.10 and 119,045.80

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Solution

The fourth proportional to 158,703.40, 238,055.10 and 119,045.80 is: 178,568.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,703.40 : 238,055.10 = 119,045.80 : x
  2. Step 2: Convert to fraction form
    158,703.40/238,055.10 = 119,045.80/x
  3. Step 3: Cross multiply
    158,703.40x = 238,055.10 × 119,045.80
  4. Step 4: Simplify right side
    158,703.40x = 28,339,459,823.58
  5. Step 5: Solve for x
    x = 28,339,459,823.58/158,703.40
  6. Step 6: Final answer
    x = 178,568.70

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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.