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Finding the Fourth Proportional to 405,062.82, 607,603.95 and 124,582.50

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Solution

The fourth proportional to 405,062.82, 607,603.95 and 124,582.50 is: 186,876.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,062.82 : 607,603.95 = 124,582.50 : x
  2. Step 2: Convert to fraction form
    405,062.82/607,603.95 = 124,582.50/x
  3. Step 3: Cross multiply
    405,062.82x = 607,603.95 × 124,582.50
  4. Step 4: Simplify right side
    405,062.82x = 75,696,819,100.88
  5. Step 5: Solve for x
    x = 75,696,819,100.88/405,062.82
  6. Step 6: Final answer
    x = 186,876.74

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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.