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Finding the Fourth Proportional to 124,509, 186,765.12 and 41,403

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Solution

The fourth proportional to 124,509, 186,765.12 and 41,403 is: 62,105.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,509 : 186,765.12 = 41,403 : x
  2. Step 2: Convert to fraction form
    124,509/186,765.12 = 41,403/x
  3. Step 3: Cross multiply
    124,509x = 186,765.12 × 41,403
  4. Step 4: Simplify right side
    124,509x = 7,732,636,263.36
  5. Step 5: Solve for x
    x = 7,732,636,263.36/124,509
  6. Step 6: Final answer
    x = 62,105.04

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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.