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Finding the Fourth Proportional to 125,359.96, 172,999.98 and 70,907.68

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Solution

The fourth proportional to 125,359.96, 172,999.98 and 70,907.68 is: 97,854.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,359.96 : 172,999.98 = 70,907.68 : x
  2. Step 2: Convert to fraction form
    125,359.96/172,999.98 = 70,907.68/x
  3. Step 3: Cross multiply
    125,359.96x = 172,999.98 × 70,907.68
  4. Step 4: Simplify right side
    125,359.96x = 12,267,027,221.85
  5. Step 5: Solve for x
    x = 12,267,027,221.85/125,359.96
  6. Step 6: Final answer
    x = 97,854.43

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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.