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Finding the Fourth Proportional to 126,666.68, 174,790.80 and 70,079

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Solution

The fourth proportional to 126,666.68, 174,790.80 and 70,079 is: 96,703.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,666.68 : 174,790.80 = 70,079 : x
  2. Step 2: Convert to fraction form
    126,666.68/174,790.80 = 70,079/x
  3. Step 3: Cross multiply
    126,666.68x = 174,790.80 × 70,079
  4. Step 4: Simplify right side
    126,666.68x = 12,249,164,473.20
  5. Step 5: Solve for x
    x = 12,249,164,473.20/126,666.68
  6. Step 6: Final answer
    x = 96,703.92

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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.