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Finding the Fourth Proportional to 117,894.88, 176,842.56 and 97,074.64

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Solution

The fourth proportional to 117,894.88, 176,842.56 and 97,074.64 is: 145,612.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,894.88 : 176,842.56 = 97,074.64 : x
  2. Step 2: Convert to fraction form
    117,894.88/176,842.56 = 97,074.64/x
  3. Step 3: Cross multiply
    117,894.88x = 176,842.56 × 97,074.64
  4. Step 4: Simplify right side
    117,894.88x = 17,166,927,848.68
  5. Step 5: Solve for x
    x = 17,166,927,848.68/117,894.88
  6. Step 6: Final answer
    x = 145,612.16

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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.