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Finding the Fourth Proportional to 126,482.94, 174,549.78 and 69,124.68

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Solution

The fourth proportional to 126,482.94, 174,549.78 and 69,124.68 is: 95,393.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,482.94 : 174,549.78 = 69,124.68 : x
  2. Step 2: Convert to fraction form
    126,482.94/174,549.78 = 69,124.68/x
  3. Step 3: Cross multiply
    126,482.94x = 174,549.78 × 69,124.68
  4. Step 4: Simplify right side
    126,482.94x = 12,065,697,686.57
  5. Step 5: Solve for x
    x = 12,065,697,686.57/126,482.94
  6. Step 6: Final answer
    x = 95,393.87

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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.