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Finding the Fourth Proportional to 93,276.61, 128,722.16 and 52,992.59

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Solution

The fourth proportional to 93,276.61, 128,722.16 and 52,992.59 is: 73,130.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,276.61 : 128,722.16 = 52,992.59 : x
  2. Step 2: Convert to fraction form
    93,276.61/128,722.16 = 52,992.59/x
  3. Step 3: Cross multiply
    93,276.61x = 128,722.16 × 52,992.59
  4. Step 4: Simplify right side
    93,276.61x = 6,821,320,060.50
  5. Step 5: Solve for x
    x = 6,821,320,060.50/93,276.61
  6. Step 6: Final answer
    x = 73,130.01

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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.