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Finding the Fourth Proportional to 118,504.48, 163,538.08 and 70,762

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Solution

The fourth proportional to 118,504.48, 163,538.08 and 70,762 is: 97,652.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,504.48 : 163,538.08 = 70,762 : x
  2. Step 2: Convert to fraction form
    118,504.48/163,538.08 = 70,762/x
  3. Step 3: Cross multiply
    118,504.48x = 163,538.08 × 70,762
  4. Step 4: Simplify right side
    118,504.48x = 11,572,281,616.96
  5. Step 5: Solve for x
    x = 11,572,281,616.96/118,504.48
  6. Step 6: Final answer
    x = 97,652.69

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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.