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Finding the Fourth Proportional to 124,312.30, 186,468.45 and 104,629.30

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Solution

The fourth proportional to 124,312.30, 186,468.45 and 104,629.30 is: 156,943.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,312.30 : 186,468.45 = 104,629.30 : x
  2. Step 2: Convert to fraction form
    124,312.30/186,468.45 = 104,629.30/x
  3. Step 3: Cross multiply
    124,312.30x = 186,468.45 × 104,629.30
  4. Step 4: Simplify right side
    124,312.30x = 19,510,063,395.59
  5. Step 5: Solve for x
    x = 19,510,063,395.59/124,312.30
  6. Step 6: Final answer
    x = 156,943.95

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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.