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Finding the Fourth Proportional to 152,990.84, 211,066.86 and 88,448.19

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Solution

The fourth proportional to 152,990.84, 211,066.86 and 88,448.19 is: 122,023.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,990.84 : 211,066.86 = 88,448.19 : x
  2. Step 2: Convert to fraction form
    152,990.84/211,066.86 = 88,448.19/x
  3. Step 3: Cross multiply
    152,990.84x = 211,066.86 × 88,448.19
  4. Step 4: Simplify right side
    152,990.84x = 18,668,481,276.16
  5. Step 5: Solve for x
    x = 18,668,481,276.16/152,990.84
  6. Step 6: Final answer
    x = 122,023.52

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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.