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Finding the Fourth Proportional to 126,567.66, 174,666.87 and 69,981.06

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Solution

The fourth proportional to 126,567.66, 174,666.87 and 69,981.06 is: 96,575.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,567.66 : 174,666.87 = 69,981.06 : x
  2. Step 2: Convert to fraction form
    126,567.66/174,666.87 = 69,981.06/x
  3. Step 3: Cross multiply
    126,567.66x = 174,666.87 × 69,981.06
  4. Step 4: Simplify right side
    126,567.66x = 12,223,372,709.48
  5. Step 5: Solve for x
    x = 12,223,372,709.48/126,567.66
  6. Step 6: Final answer
    x = 96,575.80

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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.