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Finding the Fourth Proportional to 99,749, 149,623.32 and 58,166.84

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Solution

The fourth proportional to 99,749, 149,623.32 and 58,166.84 is: 87,250.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,749 : 149,623.32 = 58,166.84 : x
  2. Step 2: Convert to fraction form
    99,749/149,623.32 = 58,166.84/x
  3. Step 3: Cross multiply
    99,749x = 149,623.32 × 58,166.84
  4. Step 4: Simplify right side
    99,749x = 8,703,115,714.71
  5. Step 5: Solve for x
    x = 8,703,115,714.71/99,749
  6. Step 6: Final answer
    x = 87,250.16

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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.