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Finding the Fourth Proportional to 125,440.16, 173,104.95 and 70,991.32

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Solution

The fourth proportional to 125,440.16, 173,104.95 and 70,991.32 is: 97,966.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,440.16 : 173,104.95 = 70,991.32 : x
  2. Step 2: Convert to fraction form
    125,440.16/173,104.95 = 70,991.32/x
  3. Step 3: Cross multiply
    125,440.16x = 173,104.95 × 70,991.32
  4. Step 4: Simplify right side
    125,440.16x = 12,288,948,899.03
  5. Step 5: Solve for x
    x = 12,288,948,899.03/125,440.16
  6. Step 6: Final answer
    x = 97,966.62

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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.