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Finding the Fourth Proportional to 152,630.60, 210,642.84 and 84,669.48

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Solution

The fourth proportional to 152,630.60, 210,642.84 and 84,669.48 is: 116,850.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,630.60 : 210,642.84 = 84,669.48 : x
  2. Step 2: Convert to fraction form
    152,630.60/210,642.84 = 84,669.48/x
  3. Step 3: Cross multiply
    152,630.60x = 210,642.84 × 84,669.48
  4. Step 4: Simplify right side
    152,630.60x = 17,835,019,831.78
  5. Step 5: Solve for x
    x = 17,835,019,831.78/152,630.60
  6. Step 6: Final answer
    x = 116,850.88

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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.