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Finding the Fourth Proportional to 93,346.77, 128,780.91 and 54,029.89

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Solution

The fourth proportional to 93,346.77, 128,780.91 and 54,029.89 is: 74,539.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,346.77 : 128,780.91 = 54,029.89 : x
  2. Step 2: Convert to fraction form
    93,346.77/128,780.91 = 54,029.89/x
  3. Step 3: Cross multiply
    93,346.77x = 128,780.91 × 54,029.89
  4. Step 4: Simplify right side
    93,346.77x = 6,958,017,487.35
  5. Step 5: Solve for x
    x = 6,958,017,487.35/93,346.77
  6. Step 6: Final answer
    x = 74,539.46

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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.