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Finding the Fourth Proportional to 119,547.20, 179,320.80 and 104,772.80

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Solution

The fourth proportional to 119,547.20, 179,320.80 and 104,772.80 is: 157,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,547.20 : 179,320.80 = 104,772.80 : x
  2. Step 2: Convert to fraction form
    119,547.20/179,320.80 = 104,772.80/x
  3. Step 3: Cross multiply
    119,547.20x = 179,320.80 × 104,772.80
  4. Step 4: Simplify right side
    119,547.20x = 18,787,942,314.24
  5. Step 5: Solve for x
    x = 18,787,942,314.24/119,547.20
  6. Step 6: Final answer
    x = 157,159.20

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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.