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Finding the Fourth Proportional to 332,386.78, 498,580.20 and 83,068.78

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Solution

The fourth proportional to 332,386.78, 498,580.20 and 83,068.78 is: 124,603.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,386.78 : 498,580.20 = 83,068.78 : x
  2. Step 2: Convert to fraction form
    332,386.78/498,580.20 = 83,068.78/x
  3. Step 3: Cross multiply
    332,386.78x = 498,580.20 × 83,068.78
  4. Step 4: Simplify right side
    332,386.78x = 41,416,448,946.16
  5. Step 5: Solve for x
    x = 41,416,448,946.16/332,386.78
  6. Step 6: Final answer
    x = 124,603.18

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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.