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Finding the Fourth Proportional to 125,707.80, 173,451.88 and 70,518.88

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Solution

The fourth proportional to 125,707.80, 173,451.88 and 70,518.88 is: 97,302.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,707.80 : 173,451.88 = 70,518.88 : x
  2. Step 2: Convert to fraction form
    125,707.80/173,451.88 = 70,518.88/x
  3. Step 3: Cross multiply
    125,707.80x = 173,451.88 × 70,518.88
  4. Step 4: Simplify right side
    125,707.80x = 12,231,632,311.49
  5. Step 5: Solve for x
    x = 12,231,632,311.49/125,707.80
  6. Step 6: Final answer
    x = 97,302.10

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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.