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Finding the Fourth Proportional to 86,445, 119,296.21 and 48,204.17

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Solution

The fourth proportional to 86,445, 119,296.21 and 48,204.17 is: 66,522.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,445 : 119,296.21 = 48,204.17 : x
  2. Step 2: Convert to fraction form
    86,445/119,296.21 = 48,204.17/x
  3. Step 3: Cross multiply
    86,445x = 119,296.21 × 48,204.17
  4. Step 4: Simplify right side
    86,445x = 5,750,575,278.99
  5. Step 5: Solve for x
    x = 5,750,575,278.99/86,445
  6. Step 6: Final answer
    x = 66,522.94

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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.