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Finding the Fourth Proportional to 125,920.96, 173,771.52 and 69,332.32

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Solution

The fourth proportional to 125,920.96, 173,771.52 and 69,332.32 is: 95,678.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,920.96 : 173,771.52 = 69,332.32 : x
  2. Step 2: Convert to fraction form
    125,920.96/173,771.52 = 69,332.32/x
  3. Step 3: Cross multiply
    125,920.96x = 173,771.52 × 69,332.32
  4. Step 4: Simplify right side
    125,920.96x = 12,047,982,631.53
  5. Step 5: Solve for x
    x = 12,047,982,631.53/125,920.96
  6. Step 6: Final answer
    x = 95,678.93

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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.