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Finding the Fourth Proportional to 152,627.49, 210,626.55 and 84,650.79

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Solution

The fourth proportional to 152,627.49, 210,626.55 and 84,650.79 is: 116,818.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,627.49 : 210,626.55 = 84,650.79 : x
  2. Step 2: Convert to fraction form
    152,627.49/210,626.55 = 84,650.79/x
  3. Step 3: Cross multiply
    152,627.49x = 210,626.55 × 84,650.79
  4. Step 4: Simplify right side
    152,627.49x = 17,829,703,852.47
  5. Step 5: Solve for x
    x = 17,829,703,852.47/152,627.49
  6. Step 6: Final answer
    x = 116,818.43

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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.