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Finding the Fourth Proportional to 93,483.16, 128,963.10 and 63,259

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Solution

The fourth proportional to 93,483.16, 128,963.10 and 63,259 is: 87,267.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,483.16 : 128,963.10 = 63,259 : x
  2. Step 2: Convert to fraction form
    93,483.16/128,963.10 = 63,259/x
  3. Step 3: Cross multiply
    93,483.16x = 128,963.10 × 63,259
  4. Step 4: Simplify right side
    93,483.16x = 8,158,076,742.90
  5. Step 5: Solve for x
    x = 8,158,076,742.90/93,483.16
  6. Step 6: Final answer
    x = 87,267.88

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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.