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Finding the Fourth Proportional to 125,329.48, 172,952.32 and 70,880.70

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Solution

The fourth proportional to 125,329.48, 172,952.32 and 70,880.70 is: 97,814.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,329.48 : 172,952.32 = 70,880.70 : x
  2. Step 2: Convert to fraction form
    125,329.48/172,952.32 = 70,880.70/x
  3. Step 3: Cross multiply
    125,329.48x = 172,952.32 × 70,880.70
  4. Step 4: Simplify right side
    125,329.48x = 12,258,981,508.22
  5. Step 5: Solve for x
    x = 12,258,981,508.22/125,329.48
  6. Step 6: Final answer
    x = 97,814.03

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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.