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Finding the Fourth Proportional to 152,791.58, 210,842.60 and 84,808.62

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Solution

The fourth proportional to 152,791.58, 210,842.60 and 84,808.62 is: 117,030.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,791.58 : 210,842.60 = 84,808.62 : x
  2. Step 2: Convert to fraction form
    152,791.58/210,842.60 = 84,808.62/x
  3. Step 3: Cross multiply
    152,791.58x = 210,842.60 × 84,808.62
  4. Step 4: Simplify right side
    152,791.58x = 17,881,269,519.17
  5. Step 5: Solve for x
    x = 17,881,269,519.17/152,791.58
  6. Step 6: Final answer
    x = 117,030.46

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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.