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Finding the Fourth Proportional to 83,607.50, 115,378.36 and 45,881.76

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Solution

The fourth proportional to 83,607.50, 115,378.36 and 45,881.76 is: 63,316.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,607.50 : 115,378.36 = 45,881.76 : x
  2. Step 2: Convert to fraction form
    83,607.50/115,378.36 = 45,881.76/x
  3. Step 3: Cross multiply
    83,607.50x = 115,378.36 × 45,881.76
  4. Step 4: Simplify right side
    83,607.50x = 5,293,762,222.71
  5. Step 5: Solve for x
    x = 5,293,762,222.71/83,607.50
  6. Step 6: Final answer
    x = 63,316.83

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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.