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Finding the Fourth Proportional to 186,722.40, 280,083.60 and 62,047.20

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Solution

The fourth proportional to 186,722.40, 280,083.60 and 62,047.20 is: 93,070.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,722.40 : 280,083.60 = 62,047.20 : x
  2. Step 2: Convert to fraction form
    186,722.40/280,083.60 = 62,047.20/x
  3. Step 3: Cross multiply
    186,722.40x = 280,083.60 × 62,047.20
  4. Step 4: Simplify right side
    186,722.40x = 17,378,403,145.92
  5. Step 5: Solve for x
    x = 17,378,403,145.92/186,722.40
  6. Step 6: Final answer
    x = 93,070.80

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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.