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Finding the Fourth Proportional to 124,775.04, 186,472.64 and 111,780.48

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Solution

The fourth proportional to 124,775.04, 186,472.64 and 111,780.48 is: 167,052.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,775.04 : 186,472.64 = 111,780.48 : x
  2. Step 2: Convert to fraction form
    124,775.04/186,472.64 = 111,780.48/x
  3. Step 3: Cross multiply
    124,775.04x = 186,472.64 × 111,780.48
  4. Step 4: Simplify right side
    124,775.04x = 20,844,001,206.07
  5. Step 5: Solve for x
    x = 20,844,001,206.07/124,775.04
  6. Step 6: Final answer
    x = 167,052.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.