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Finding the Fourth Proportional to 126,802.61, 174,987.59 and 70,213.98

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Solution

The fourth proportional to 126,802.61, 174,987.59 and 70,213.98 is: 96,895.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,802.61 : 174,987.59 = 70,213.98 : x
  2. Step 2: Convert to fraction form
    126,802.61/174,987.59 = 70,213.98/x
  3. Step 3: Cross multiply
    126,802.61x = 174,987.59 × 70,213.98
  4. Step 4: Simplify right side
    126,802.61x = 12,286,574,793.44
  5. Step 5: Solve for x
    x = 12,286,574,793.44/126,802.61
  6. Step 6: Final answer
    x = 96,895.29

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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.