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Finding the Fourth Proportional to 124,603.40, 186,929.40 and 49,710.80

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Solution

The fourth proportional to 124,603.40, 186,929.40 and 49,710.80 is: 74,575.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,603.40 : 186,929.40 = 49,710.80 : x
  2. Step 2: Convert to fraction form
    124,603.40/186,929.40 = 49,710.80/x
  3. Step 3: Cross multiply
    124,603.40x = 186,929.40 × 49,710.80
  4. Step 4: Simplify right side
    124,603.40x = 9,292,410,017.52
  5. Step 5: Solve for x
    x = 9,292,410,017.52/124,603.40
  6. Step 6: Final answer
    x = 74,575.89

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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.