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Finding the Fourth Proportional to 186,987.60, 280,474.20 and 62,328.60

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Solution

The fourth proportional to 186,987.60, 280,474.20 and 62,328.60 is: 93,490.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,987.60 : 280,474.20 = 62,328.60 : x
  2. Step 2: Convert to fraction form
    186,987.60/280,474.20 = 62,328.60/x
  3. Step 3: Cross multiply
    186,987.60x = 280,474.20 × 62,328.60
  4. Step 4: Simplify right side
    186,987.60x = 17,481,564,222.12
  5. Step 5: Solve for x
    x = 17,481,564,222.12/186,987.60
  6. Step 6: Final answer
    x = 93,490.50

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1.5x scale

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.