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Finding the Fourth Proportional to 125,603.46, 173,322.72 and 71,876.16

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Solution

The fourth proportional to 125,603.46, 173,322.72 and 71,876.16 is: 99,183.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,603.46 : 173,322.72 = 71,876.16 : x
  2. Step 2: Convert to fraction form
    125,603.46/173,322.72 = 71,876.16/x
  3. Step 3: Cross multiply
    125,603.46x = 173,322.72 × 71,876.16
  4. Step 4: Simplify right side
    125,603.46x = 12,457,771,554.36
  5. Step 5: Solve for x
    x = 12,457,771,554.36/125,603.46
  6. Step 6: Final answer
    x = 99,183.35

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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.