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Finding the Fourth Proportional to 93,111.86, 128,497.28 and 52,827.32

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Solution

The fourth proportional to 93,111.86, 128,497.28 and 52,827.32 is: 72,903.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,111.86 : 128,497.28 = 52,827.32 : x
  2. Step 2: Convert to fraction form
    93,111.86/128,497.28 = 52,827.32/x
  3. Step 3: Cross multiply
    93,111.86x = 128,497.28 × 52,827.32
  4. Step 4: Simplify right side
    93,111.86x = 6,788,166,023.07
  5. Step 5: Solve for x
    x = 6,788,166,023.07/93,111.86
  6. Step 6: Final answer
    x = 72,903.35

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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.