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Finding the Fourth Proportional to 115,358.70, 173,070.45 and 56,196.30

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Solution

The fourth proportional to 115,358.70, 173,070.45 and 56,196.30 is: 84,310.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,358.70 : 173,070.45 = 56,196.30 : x
  2. Step 2: Convert to fraction form
    115,358.70/173,070.45 = 56,196.30/x
  3. Step 3: Cross multiply
    115,358.70x = 173,070.45 × 56,196.30
  4. Step 4: Simplify right side
    115,358.70x = 9,725,918,929.34
  5. Step 5: Solve for x
    x = 9,725,918,929.34/115,358.70
  6. Step 6: Final answer
    x = 84,310.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.