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Finding the Fourth Proportional to 108,670.96, 149,966.16 and 63,345.52

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Solution

The fourth proportional to 108,670.96, 149,966.16 and 63,345.52 is: 87,416.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,670.96 : 149,966.16 = 63,345.52 : x
  2. Step 2: Convert to fraction form
    108,670.96/149,966.16 = 63,345.52/x
  3. Step 3: Cross multiply
    108,670.96x = 149,966.16 × 63,345.52
  4. Step 4: Simplify right side
    108,670.96x = 9,499,684,387.60
  5. Step 5: Solve for x
    x = 9,499,684,387.60/108,670.96
  6. Step 6: Final answer
    x = 87,416.95

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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.