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Finding the Fourth Proportional to 152,041.81, 209,851.01 and 88,416.31

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Solution

The fourth proportional to 152,041.81, 209,851.01 and 88,416.31 is: 122,033.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,041.81 : 209,851.01 = 88,416.31 : x
  2. Step 2: Convert to fraction form
    152,041.81/209,851.01 = 88,416.31/x
  3. Step 3: Cross multiply
    152,041.81x = 209,851.01 × 88,416.31
  4. Step 4: Simplify right side
    152,041.81x = 18,554,251,953.97
  5. Step 5: Solve for x
    x = 18,554,251,953.97/152,041.81
  6. Step 6: Final answer
    x = 122,033.88

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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.