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Finding the Fourth Proportional to 93,200.92, 128,527.86 and 62,643.16

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Solution

The fourth proportional to 93,200.92, 128,527.86 and 62,643.16 is: 86,387.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,200.92 : 128,527.86 = 62,643.16 : x
  2. Step 2: Convert to fraction form
    93,200.92/128,527.86 = 62,643.16/x
  3. Step 3: Cross multiply
    93,200.92x = 128,527.86 × 62,643.16
  4. Step 4: Simplify right side
    93,200.92x = 8,051,391,298.44
  5. Step 5: Solve for x
    x = 8,051,391,298.44/93,200.92
  6. Step 6: Final answer
    x = 86,387.47

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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.