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Finding the Fourth Proportional to 157,642.84, 236,563.62 and 105,090.04

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Solution

The fourth proportional to 157,642.84, 236,563.62 and 105,090.04 is: 157,701.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,642.84 : 236,563.62 = 105,090.04 : x
  2. Step 2: Convert to fraction form
    157,642.84/236,563.62 = 105,090.04/x
  3. Step 3: Cross multiply
    157,642.84x = 236,563.62 × 105,090.04
  4. Step 4: Simplify right side
    157,642.84x = 24,860,480,288.34
  5. Step 5: Solve for x
    x = 24,860,480,288.34/157,642.84
  6. Step 6: Final answer
    x = 157,701.30

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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.