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Finding the Fourth Proportional to 124,318.90, 171,558.48 and 67,730.32

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Solution

The fourth proportional to 124,318.90, 171,558.48 and 67,730.32 is: 93,466.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,318.90 : 171,558.48 = 67,730.32 : x
  2. Step 2: Convert to fraction form
    124,318.90/171,558.48 = 67,730.32/x
  3. Step 3: Cross multiply
    124,318.90x = 171,558.48 × 67,730.32
  4. Step 4: Simplify right side
    124,318.90x = 11,619,710,749.11
  5. Step 5: Solve for x
    x = 11,619,710,749.11/124,318.90
  6. Step 6: Final answer
    x = 93,466.97

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1.5x scale

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.