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Finding the Fourth Proportional to 75,402.90, 104,068.80 and 43,590.24

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Solution

The fourth proportional to 75,402.90, 104,068.80 and 43,590.24 is: 60,161.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,402.90 : 104,068.80 = 43,590.24 : x
  2. Step 2: Convert to fraction form
    75,402.90/104,068.80 = 43,590.24/x
  3. Step 3: Cross multiply
    75,402.90x = 104,068.80 × 43,590.24
  4. Step 4: Simplify right side
    75,402.90x = 4,536,383,968.51
  5. Step 5: Solve for x
    x = 4,536,383,968.51/75,402.90
  6. Step 6: Final answer
    x = 60,161.93

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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.