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Finding the Fourth Proportional to 83,239.49, 114,870.95 and 45,513.74

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Solution

The fourth proportional to 83,239.49, 114,870.95 and 45,513.74 is: 62,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,239.49 : 114,870.95 = 45,513.74 : x
  2. Step 2: Convert to fraction form
    83,239.49/114,870.95 = 45,513.74/x
  3. Step 3: Cross multiply
    83,239.49x = 114,870.95 × 45,513.74
  4. Step 4: Simplify right side
    83,239.49x = 5,228,205,749.93
  5. Step 5: Solve for x
    x = 5,228,205,749.93/83,239.49
  6. Step 6: Final answer
    x = 62,809.20

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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.