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Finding the Fourth Proportional to 124,317.90, 171,557.10 and 67,729.32

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Solution

The fourth proportional to 124,317.90, 171,557.10 and 67,729.32 is: 93,465.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,317.90 : 171,557.10 = 67,729.32 : x
  2. Step 2: Convert to fraction form
    124,317.90/171,557.10 = 67,729.32/x
  3. Step 3: Cross multiply
    124,317.90x = 171,557.10 × 67,729.32
  4. Step 4: Simplify right side
    124,317.90x = 11,619,445,724.17
  5. Step 5: Solve for x
    x = 11,619,445,724.17/124,317.90
  6. Step 6: Final answer
    x = 93,465.59

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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.