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Finding the Fourth Proportional to 126,307.86, 174,306.27 and 69,719.22

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Solution

The fourth proportional to 126,307.86, 174,306.27 and 69,719.22 is: 96,213.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,307.86 : 174,306.27 = 69,719.22 : x
  2. Step 2: Convert to fraction form
    126,307.86/174,306.27 = 69,719.22/x
  3. Step 3: Cross multiply
    126,307.86x = 174,306.27 × 69,719.22
  4. Step 4: Simplify right side
    126,307.86x = 12,152,497,185.51
  5. Step 5: Solve for x
    x = 12,152,497,185.51/126,307.86
  6. Step 6: Final answer
    x = 96,213.31

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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.