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Finding the Fourth Proportional to 119,312.40, 179,051.40 and 89,792.40

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Solution

The fourth proportional to 119,312.40, 179,051.40 and 89,792.40 is: 134,750.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,312.40 : 179,051.40 = 89,792.40 : x
  2. Step 2: Convert to fraction form
    119,312.40/179,051.40 = 89,792.40/x
  3. Step 3: Cross multiply
    119,312.40x = 179,051.40 × 89,792.40
  4. Step 4: Simplify right side
    119,312.40x = 16,077,454,929.36
  5. Step 5: Solve for x
    x = 16,077,454,929.36/119,312.40
  6. Step 6: Final answer
    x = 134,750.91

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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.