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Finding the Fourth Proportional to 77,330.84, 106,725.42 and 43,348.51

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Solution

The fourth proportional to 77,330.84, 106,725.42 and 43,348.51 is: 59,825.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,330.84 : 106,725.42 = 43,348.51 : x
  2. Step 2: Convert to fraction form
    77,330.84/106,725.42 = 43,348.51/x
  3. Step 3: Cross multiply
    77,330.84x = 106,725.42 × 43,348.51
  4. Step 4: Simplify right side
    77,330.84x = 4,626,387,185.75
  5. Step 5: Solve for x
    x = 4,626,387,185.75/77,330.84
  6. Step 6: Final answer
    x = 59,825.90

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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.