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Finding the Fourth Proportional to 111,053.65, 153,257.66 and 60,752.65

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Solution

The fourth proportional to 111,053.65, 153,257.66 and 60,752.65 is: 83,840.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,053.65 : 153,257.66 = 60,752.65 : x
  2. Step 2: Convert to fraction form
    111,053.65/153,257.66 = 60,752.65/x
  3. Step 3: Cross multiply
    111,053.65x = 153,257.66 × 60,752.65
  4. Step 4: Simplify right side
    111,053.65x = 9,310,808,977.80
  5. Step 5: Solve for x
    x = 9,310,808,977.80/111,053.65
  6. Step 6: Final answer
    x = 83,840.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.