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Finding the Fourth Proportional to 124,398.84, 186,597.78 and 103,578.36

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Solution

The fourth proportional to 124,398.84, 186,597.78 and 103,578.36 is: 155,367.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,398.84 : 186,597.78 = 103,578.36 : x
  2. Step 2: Convert to fraction form
    124,398.84/186,597.78 = 103,578.36/x
  3. Step 3: Cross multiply
    124,398.84x = 186,597.78 × 103,578.36
  4. Step 4: Simplify right side
    124,398.84x = 19,327,492,032.04
  5. Step 5: Solve for x
    x = 19,327,492,032.04/124,398.84
  6. Step 6: Final answer
    x = 155,367.14

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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.