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Finding the Fourth Proportional to 101,341.62, 139,842.72 and 58,306.32

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Solution

The fourth proportional to 101,341.62, 139,842.72 and 58,306.32 is: 80,457.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,341.62 : 139,842.72 = 58,306.32 : x
  2. Step 2: Convert to fraction form
    101,341.62/139,842.72 = 58,306.32/x
  3. Step 3: Cross multiply
    101,341.62x = 139,842.72 × 58,306.32
  4. Step 4: Simplify right side
    101,341.62x = 8,153,714,381.99
  5. Step 5: Solve for x
    x = 8,153,714,381.99/101,341.62
  6. Step 6: Final answer
    x = 80,457.71

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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.