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Finding the Fourth Proportional to 83,501.70, 115,101.45 and 63,277.62

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Solution

The fourth proportional to 83,501.70, 115,101.45 and 63,277.62 is: 87,223.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,501.70 : 115,101.45 = 63,277.62 : x
  2. Step 2: Convert to fraction form
    83,501.70/115,101.45 = 63,277.62/x
  3. Step 3: Cross multiply
    83,501.70x = 115,101.45 × 63,277.62
  4. Step 4: Simplify right side
    83,501.70x = 7,283,345,814.55
  5. Step 5: Solve for x
    x = 7,283,345,814.55/83,501.70
  6. Step 6: Final answer
    x = 87,223.92

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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.