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Finding the Fourth Proportional to 119,308.40, 179,045.40 and 89,788.40

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Solution

The fourth proportional to 119,308.40, 179,045.40 and 89,788.40 is: 134,744.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,308.40 : 179,045.40 = 89,788.40 : x
  2. Step 2: Convert to fraction form
    119,308.40/179,045.40 = 89,788.40/x
  3. Step 3: Cross multiply
    119,308.40x = 179,045.40 × 89,788.40
  4. Step 4: Simplify right side
    119,308.40x = 16,076,199,993.36
  5. Step 5: Solve for x
    x = 16,076,199,993.36/119,308.40
  6. Step 6: Final answer
    x = 134,744.91

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1.5x scale

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.