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Finding the Fourth Proportional to 93,486.16, 128,967.24 and 63,262

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Solution

The fourth proportional to 93,486.16, 128,967.24 and 63,262 is: 87,272.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,486.16 : 128,967.24 = 63,262 : x
  2. Step 2: Convert to fraction form
    93,486.16/128,967.24 = 63,262/x
  3. Step 3: Cross multiply
    93,486.16x = 128,967.24 × 63,262
  4. Step 4: Simplify right side
    93,486.16x = 8,158,725,536.88
  5. Step 5: Solve for x
    x = 8,158,725,536.88/93,486.16
  6. Step 6: Final answer
    x = 87,272.01

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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.