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Finding the Fourth Proportional to 147,577.65, 203,656.17 and 83,915.43

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Solution

The fourth proportional to 147,577.65, 203,656.17 and 83,915.43 is: 115,802.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,577.65 : 203,656.17 = 83,915.43 : x
  2. Step 2: Convert to fraction form
    147,577.65/203,656.17 = 83,915.43/x
  3. Step 3: Cross multiply
    147,577.65x = 203,656.17 × 83,915.43
  4. Step 4: Simplify right side
    147,577.65x = 17,089,895,077.70
  5. Step 5: Solve for x
    x = 17,089,895,077.70/147,577.65
  6. Step 6: Final answer
    x = 115,802.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.