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Finding the Fourth Proportional to 125,697.79, 173,438.08 and 70,508.89

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Solution

The fourth proportional to 125,697.79, 173,438.08 and 70,508.89 is: 97,288.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,697.79 : 173,438.08 = 70,508.89 : x
  2. Step 2: Convert to fraction form
    125,697.79/173,438.08 = 70,508.89/x
  3. Step 3: Cross multiply
    125,697.79x = 173,438.08 × 70,508.89
  4. Step 4: Simplify right side
    125,697.79x = 12,228,926,504.53
  5. Step 5: Solve for x
    x = 12,228,926,504.53/125,697.79
  6. Step 6: Final answer
    x = 97,288.32

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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.