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Finding the Fourth Proportional to 186,805.44, 280,290.31 and 98,038.15

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Solution

The fourth proportional to 186,805.44, 280,290.31 and 98,038.15 is: 147,100.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,805.44 : 280,290.31 = 98,038.15 : x
  2. Step 2: Convert to fraction form
    186,805.44/280,290.31 = 98,038.15/x
  3. Step 3: Cross multiply
    186,805.44x = 280,290.31 × 98,038.15
  4. Step 4: Simplify right side
    186,805.44x = 27,479,142,509.51
  5. Step 5: Solve for x
    x = 27,479,142,509.51/186,805.44
  6. Step 6: Final answer
    x = 147,100.33

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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.